why I probably can't have sex

so I have something called body dysmorphic disorder (BDD) and I'm very uncomfortable with my body and I'm very insecure and I always wear a jacket and I've had an eating disorder and I just really don't like it. well today my boyfriend wanted to send nudes and I couldn't and he kept telling me that he wouldn't judge and he just kept telling me all these things and I know he felt bad because I told him no, I told him that I'm just really uncomfortable. and I want to I guess "please" him but not that way, and if I can't do that than I probably can't have sex. and it just bothers me.