First off, I'm a Fearful-Avoidant, leaning towards Dismissive-Avoidant dating what I think might be a Secure. 

I've been seeing this guy for about two months now and it started off great at first. On our first date, it was nice, nothing to really write home about, but I did feel comfortable with him and we discovered that we had a lot in common early on.

Now that we've put a label on things and have "defined the relationship", it only took about two weeks and suddenly I feel like I'm doing a 180. The feelings of "excitement" that I felt started to diminish and now turned into dread. It felt no longer exciting to see him, but rather I started to dread it. He's very physically affectionate (his main love language is physical touch) and while I used to enjoy his hugs or holding his hand or leaning against his shoulder, those things no longer seem to interest me. In fact, it's like I'm almost repulsed by them and would prefer to not do them at all. I've also noticed that I've started nitpicking certain behaviors (ex: the way he talks, his facial hair, eating habits, etc) and other things about him and while they were tolerable before, now they have somehow turned into major dealbreakers. So much so that I've thought about breaking up with him on multiple occasions, though the feeling is fleeting after a while.

I will mention that this is my first relationship, so everything is new and a bit scary. I'm trying to navigate my feelings and understand what's really going on so that I can properly communicate that to him as well. We've talked about attachment theory a bit and I've also told him things about myself (how I get anxious easily, the fact that I overthink everything, and that I'm not particularly fond of heavy physical affection.) He's been super understanding of everything and has continually said that he will be patient with me and wants to work on things together. He even told me to let him know if he was being too much when it came to piling on the affection and that gave me a brief instance of relief.

But in the end, despite initially liking my boyfriend a lot, I am always left with this feeling of consistent "fight or flight". This feeling makes me feel as though I want to leave the relationship altogether over things I feel like are genuine concerns but can also be deactivating strategies on a subconscious level. I literally cannot distinguish the two and it's been making me anxious for quite some time.

For any FAs or even DAs out there who may have had or have similar problems, I'd love to hear some insight or get some advice on this. How do I know if I'm just losing interest or just letting my subconscious get the best of me?