Why do i keep forgetting to eat i just don't get hungry i had to force food down today cuz i didn't eat in 2 days?

Lost appetite: It sounds like you have lost your appetite. Depending on how long this has been going on -- and whether you're recovering from the flu or some other GI illness -- you need to see your physician about this. Many issues can interfere with appetite. Some have to do with depression and anxiety, and others have to do with more physical illnesses. Best to check things out so you get needed help.