Wall of text incoming:

I've been in a relationship for about 3 months now and I don't think I've ever felt so strongly about someone before in my life.  I really want to make things work but I'm so terrified that my anxiety is going to ruin things.

While we were out shopping last weekend, she suddenly got a lot more quiet and less affectionate, and I was so worried I did something wrong.  She later told me it was just too hot outside, and she wasn't feeling great in the heat, but that didn't stop me from spiraling for 30 minutes trying to think of what I did wrong and how I could fix things.  

Later on in that night, I went to initiate sex, but she said she wasn't in the mood, and I immediately took it to mean something was wrong with me and I withdrew for about 15 minutes so I could have a moment to recover before eventually resuming being affectionate with her.  She asked me why I withdrew initially, and I told her the truth that my anxiety got the best of me, and I took it personally for a little bit.  She was really upset to hear this and told me, "I can't be quiet without you taking it personally, and I can't turn down sex without you taking it personally."  We were supposed to spend the entire weekend together, but she went home Saturday night because she was too upset.

It's been a few days since that happened and she said she wants to see me tomorrow.  The past few days I've just been a mess because I feel like there's been several times where I've been very affectionate to her over text and she's thus far responded in very non-affectionate ways.  The most recent time it happened, I started having a minor panic attack and asked if we could please talk on the phone, something she's always been willing to do immediately if we had any issues.  For the first time ever, she said "not now, maybe later tonight" because she's going out with a bunch of her wrestler friends (who all have huge crushes on her).

I'm so worried I'm overthinking things so I've spent the last couple days trying to convince myself everything is okay and I'm just imagining things. I don't know what to do.  I don't know if my problems I'm imagining are real and I'm so scared that if I talk to her about it, it's going to cause even more problems or she's going to think I'm broken.