oh boy-
my cat is on siezure meds for epilepsy. Your cat is most likely greatfull for your looking after her health, but they are such contrary creatures like children who resent doing something for thier own good but all the while are counting on the loving motivation- but they still punish the parent. I think maybe kitty is being snotty but is not ubnder any outside influence. Cats have a strong will and are professional survivors on this earth. make peace with cat and yourself.
be safe