Hi everybody - I am going to try to keep this as short and concise as possible, but I definitely need some insight or any type of advice, it will really be appreciated.

One of my best friend (let's call her friend A) is one of the most calm, chill people ever (just a disclaimer before i begin so everyone understands her behavior prior to this)

All of a sudden, about a week and a half ago, she hadn't talked to me all day which was odd because first, that isn't like her we usually exchange a few texts during the day, and two, it was my birthday. I called her to check on her and she said she was really sad and needed some space and time alone, I totally respected that and told her to let me know if she needs anything.

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The next day was Saturday, which was my birthday dinner. It was me, my sister, friend A, friend B, friend C and friend C's boyfriend. At my dinner she randomly made a scene accusing friend C's boyfriend of looking at her in a sexual way that was making her very uncomfortable. I understand these things happen, however we have all hung out together on multiple occasions and they never had a problem with each other this came out of nowhere. We were at a really fancy restaurant and she made a scene and was very loud which was not like her. All night she kept repeating "I just have a feeling" regarding friend C's boyfriend.

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Sunday comes around, all of my friends and sister slept over. In the morning friend A tells me that she hasn't been sleeping much and is feeling really "off". She then tells me that there have been multiple men that forced her to have sex with them. I am always one to believe the victim, but this wasn't making sense considering she has not had sex with anyone before, from what she told me. I hugged her while she was crying and told her everything will be okay and we will heal her together.

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That night after leaving, friend A calls me and tells me that there are people watching her and that people are trying to kidnap her. She sounded really out of it, so I asked her to facetime me to make sure she was safe, and she was in bed and safe. When I asked her about these people trying yo kidnap her, she changed the story multiple times. She also told me that she "had a feeling" one of her best friends (of 12 years) is out to get her so she literally blew up on her and cut her off completely because of this "feeling"

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Monday, friend A asked me to go pick up her stuff from the friend's house that she cut off completely the night before. She explained she did not want to go alone because she said people were watching her and following her and wanted to kidnap her. When we were driving she kept opening the window and screaming at people saying "you think I'm stupid? I know you want to kidnap me! I know you are here to get me!" I tried to calm her down, and she listened and started crying and this is when she began to say she can't tell what is real from fake.

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The week passes by and out text conversation is very odd, she is saying many things that do not make sense. For an example, she randomly texted me saying "I'm not impatient, I'll wait forever" I asked her what she meant and if shes okay and she said "I am okay &lt;3 don't worry about it"

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Friday comes, and she asked to see me because she really needed to. It was night time and she pulled up to my house wearing sunglasses and would not take them off. When she comes upstairs, she first says "who is in here? I know there is someone in here who wants to kidnap me" I explained to her that is not true and she got angry and hostile and called me a liar. Then she sees my sister because I invited my sister over as well, and she asked who she was - when she's known my sister for YEARS now. My sister explains who she is and she was like "oh I remember now". Then she says "shower I need to shower" and gets up and showers in my bathroom. After, she asked my sister and I to leave my own bedroom, so she can do her hair and makeup even though our plans was to stay in. When she's done, she comes to my living room dressed in a gown, heels, trench coat, and says "when is the dinner?" My sister and I were very confused and explained our plans were to stay in. She got very angry and said that we are liars and that she wanted to go out to eat right now. It was 9:30 and in my state everything closes at 10 because of the pandemic, so I explained that and told her I would get takeout.

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We drive to pick up the food, and she says she knows the person sitting in the white car and I told her that that person was not there, and she told me I am a liar again, and then gets out of the car to hop into the strangers white car - I got her back in my car safely.

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When we got home, she started saying, again, that there were people in my house who wanted to kidnap her. Then her episode started escalating and when I tried to calm her down she told me she didn't want me in her vicinity and wanted my sister and I to leave MY own house. I told her I can't do that, but we will walk away. A few minutes passed and she called us back out and told us that she can't remember how to walk. She then said that "they" are telling her to go in my kitchen, but she can't because she can't walk and she doesn't want "them" to be angry with her. Then she started panicking even more and told me she does not remember her name, her age, her address, etc. She also asked me if she was dying and if I was lying about everything. She then says, again, she can't tell whats real vs fake. It gets really bad, so I end up calling her mom and her mom asked me to bring her home. Her mom kind of knew what was going on, but not to this extent. When I was trying to bring her home at 3 am, she wouldn't get into my car for 20 minutes and was screaming in the middle of the street that I was trying to kidnap her. Then it turned into that I was trying to drive her to her funeral. She finally gets in, and I bring her home and her mom brings her inside and up to her room. I talked with her mom about everything, and then went home.

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Her mom ended up taking her to the ER yesterday, but I haven't had much updates. I was wondering if anyone can give me insight or advice, really anything about what is going on. I am really confused, overwhelmed, and upset. I have bipolar 2 myself, so I understand a lot of mental illnesses, but not much about something like this.