Can’t keep food down!

So I have normally the past few weeks been so hungry I want to eat everything! So I did. Not like starting yesterday nothing sounds good and when I eat I throw up so I haven’t really eaten. I tried to eat fries today and I did but threw up 2 hours later but I’ve been drinking water. I have bad anxiety so I think maybe it’s playing on that too and I just can’t get comfortable and I’m constantly worried about every symptom. Any ideas or advice. Should I send my boyfriend to the store to get some things if so what?! Please help!