I've been with my girlfriend for just about 5 1/2 years at this point, and recently (I'd say in the last year or so) she's been having episodes of intense paranoia and delusions at increased frequencies. From what I've gathered, she believes she is living in a simulation. She doesn't believe that she's the only person in the simulation, but she does think that most people are essentially NPC's, simply there so that "they" can control her and/or send cryptic, vague messages to her. In her case "they" refer to scientists. She believes that scientists are running the simulation and are testing her for some unknown reason. 

As far as I can tell, the delusions are contained within her episodes. I haven't pried too hard because I don't want to trigger her delusions, but I don't think they're constant. Her episodes usually last anywhere between 15 and 45 minutes. At first, it was only happening about once every month and a half or two months. I put it off as stress initially, but within the last few months, she seems to have gotten worse. Her episodes are often only separated by one or two weeks at this point. They have seemingly random triggers, although the most common trigger seems to be when she experiences the Baader-Meinhof Phenomenon.

I have reason to believe that she also might be experiencing mild hallucinations. More than once she's told me about how she'll be on TikTok after work and one of the TikTok's on her dashboard will randomly start repeating her name over and over. I've asked her to favorite any offending TikToks so that I can see them, but I have yet to see anything. 

I want to get her help, and she actually wants help too. I've talked to her about seeing a psychiatrist and she seems open to the idea, but neither of us knows where to start. Any advice would be much appreciated.

TL;DR, my GF is experiencing delusions, paranoia, and possibly mild hallucinations. I want her to see a professional and get help, but don't know where to start.