After a night of drinking a couple of beers and a shots of vodka i get diarrhea very bad . should i go see the doctor this isn't the first time?

Body's reaction: This is a somewhat normal response from 'too much alcohol'. The body is getting rid of the poisons you consumed over night. Yes, sorry, alcohol is a poison - that's why we get 'drunk' with too much of it. I suspect you'll feel better shortly. I recommend chicken soup, coconut water or whatever your fluid of choice is - Gatorade? to replace some of the fluids and salts you've lost after all this.