does it matter if you hardly eat for 5 days?

Make sure you are getting fluids til you feel better. Sips of them over long periods is better than a lot a few times a day. When you feel better your appetite will most likely will return. Our nose is connected to our taste and that is why you may not feel like eating now.

I've gone long periods of time without food and as long as you don't do It often, you should be alright. Your health would start to decline if you did it regularly though. You just need lots of fluids. You could try soup? Anything like that is good, good luck!