Hate having my picture taken

For the past like 5 years, I've hardly taken any pictures of myself and I hide when people try and take photos with me in it. It sounds really stupid, but I'm super self-conscious, and I don't even like for people to look at me at all (even in public). Anyways, on Mother's Day, I took some pictures with my family, and EVERYONE posted them on Facebook. First, I was basically forced (not literally) to take the picture, then each one of them posted them online. My family has never cared and they don't see the actual problem (that I hate myself and I'm too self-conscious for photos). My mom posted it as her cover photo (the one you see when you go to her page). It really bothered me, and I know I'm probably overreacting, but honestly it's upset me so much that I've shed tears (I know it's stupid). I have social anxiety, and I'm lacking confidence (extremely), and I guess I'm a little ashamed of myself, and I don't want my pictures anywhere ever. I feel like if people see my photos they'll realize how ugly I am or something... I guess I'm just venting, but if anyone has suggestions or something I'll take them.