I don’t know what to do

So last night a guy I liked asked me for but pics but with underwear and I did it. That’s completely the opposite of me. I would never ever do anything like that. If it was anyone else I probably wouldn’t have done it cause I like him a lot. I don’t know if he likes me though. Plus it’s been giving me a lot of anxiety so I woke up feeling sick to my stomach. I don’t know what to do