Anorexic ? Ed?

Hi guys I’m 16 and I suffer from severe depression and anxiety I weigh 100 and am 5”4-5”5 currently I have been thinking that I am fat when I am way to thin, I can barely eat I eat small portions and feel really really sick like I’m going to throw up as also when I gain a few pounds I get eaten up inside and try to lose it I’ve been saying that I’m not hungry a lot to can this be what I think it is ?