Stopped eating for 2 days..?

For two days I just wasn't interested in eating at all I think alot of it contributed to the fact I was depressed and I tend to not eat while I'm depressed. But I started eating normally today and I feel absoultly horrible my stomach is just churning like crazy and I'm just feeling awful. Basically my question is the fact that my stomach is hurting is because I haven't been eating enough? Also is there anything I can do to help get better?