Afraid not mate. Lots of people find it harder to eat a lot when its hot out (im the opposite tho lol, dont know why).
You still have to eat even if you feel like puking it all up, just make sure you dont. Remember the force feeding is GOOD, it means you are forcing the nutrients into your body to grow...thats how i look at it. (Providing you are force feeding quality food into yourself and not garbage.)