Lately I haven't been able to eat anything I feel sick and hungry as you would if you haven't eaten anything for 2 days, but whenever I try to eat something I just can't do it, I take 2 bites then I feel sick and nauseous like I'm going to throw up so I don't end up eating anything. I've posted this on the 5/12/15 and it started to happen on the 2/12/15. This might sound stupid but dose the fact that all I've been thinking about is my recent girlfriend have something to do with it. We started dating on the 2nd which is when the odd things started happening. I've also noticed that my mood has changed very dramatically, I'm normally talkative and very active now I'm very quiet and don't do anything anymore can anyone tell me what's happening or what's causing this. Any help would be greatly appreciated.