I think the bad lifestyle came first. It started from a few traumatic events which happened at the same time.
Tried the doctor for Hives which I normally get with anxiety, minor swelling, strong pulse and stomach ache. More than 1 doctor just sent me away with anti histamine.
Hm. this question is a little vague. Not getting enough sleep and eating right may lead to a downgrade of our overall health and ability to fight off illness. Hives are usually a skin reaction to something you are allergic to though. Are you sure it is hives? And incoherent sentences . . . well, if someone is not just slightly sleep deprived but exhausted, they can have issues in all sorts of cognitive ways. Maybe some more details of what is going on would be helpful. Oh, and a physical really can be helpful for judging over all health. good luck