Nawh, if it was something as serious as that there'd be other symptoms.
I'm never hungrier at night than during the day, I'm never hungry at all now, thirsty mainly and for specific drinks sometimes.
This is unavoidable, even with a slow release food like brown bread eaten before sleeping, digestion can ruin your sleep too. The length of time between sleeping and breaking fast is always going to be a "fast period" for the body and in anyone they start to produce insulin or glucose accordingly, in diabetes that a pain in the ass. Hormones can influence it too, which means dreams and stress or adrenaline in dream states can influence it too.
Well, if I am expecting his arguments to make sense it is. It may be a lost cause to try to reason with one. Not that an INFP can't be rational and logical and all that, just that they tend not to be when their thoughts are picked apart. In my experience. I hope this isn't typism. I'm thinking it's best to just leave them be, say you disagree, and leave it at that. But I always try to engage people in respectful discussion, because I respect people's ability to reason. I may have too high expectations for it.