Is anyone else having trouble getting their social life back?

I have waited so long for quarantine to be over just so I could get back to my life, catch up with friends, go back to the gym. But now that it is I have such bad social anxiety I can't interact for more than like an hour without getting super emotionally detached and tired.... which is just so much fun to be around I'm sure.

Like I saw my friend three days ago and I was planning on staying at her house all night and drinking wine, but I left after three hours because like I just couldn't hold a conversation, I was getting sleepy and feeling really self-conscious. Part of it was that I gained weight, but so did she so it's not like I needed to be really embarrassed. I don't know what's wrong with me. It's like I'm high-functioning agoraphobic.