Anxiety disorder. Inside. please help.

I suspect an anxiety disorder. I am a very hyperactive person.I have no control on my temper.Sometimes I feel like my brain is literally going to tear apart with so many thoughts at once.I started sleeping uncontrollably.I have put on alot of weight. I panic very quickly. I over Think. I feel like ...no matter what situation I am in... I randomly get thoughts of the worst case scenario. I get destructive thoughts. I am extremely irritable all the time.Even right now...I feel like crying and screaming at the same time without any specific reason. I get very random mood swings...and shallow breathing very often... I have because very lazy and I feel very tired without even doing anything. I can't seem to focus on anything and also...I feel very hopeless and sad randomly... I feel like giving up on life... O don't seem to have interest in anything at all...and I over think and also repeatedly explain things to people... I feel completely insane from the inside... Please help... Thanks.