I was wondering why somedays I have out of control hunger and other days I'm fine. Also why my anxiety spikes for no reason

I think its the Tylenol PM I sometimes take. I googled it and its the anthistamine that causes the issue.

I just had to stop my Benadryl for the same reason.

I couldnt figure out why somedays I was fine at 1500 calories and other times I was ravenous and ate 2500 calories