Fear of eating?

To start, I have a horrible fear of throwing up, last week I had a stomach bug that went through my house and had the worst bout of vomiting I’ve had in years. It took a day or 2 to feel relatively normal again but now my stomach hurts from not eating… I haven’t eaten barely anything in almost a full week, when I do eat I feel fine but can only take a bite of 2 at a time. At this point my stomach is really hurting from being so hungry, but in the back of my head I think I’m going to get sick again if I eat. Nothing even sounds appetizing and I have almost no desire to eat, but my body is becoming so weak, it’s hard to do everyday tasks. Any advise? Id really appreciate it.