Very similar thing happened to me. It felt weird for a little over a year. Like I wasn’t sure who’s eyes I was looking out of.
I can’t afford diagnosis either and I don’t think it would be super useful for me. What it did change is how I organize my life. Now I make sure to have ear plugs/noise cancelling headphones with me. I make sure to have time on my own and/or doing the things I’m in to. The best thing is that I no longer feel like a moron because I’ve mishandled a social situation. Now I can chalk it up to not understanding, learn something, and move on.
Best of luck in your journey!
I had no idea call of duty was such a big deal. It’s not my jam so I never notice it.