Talk to General Practitioner on Stomach,celiac Disease,

I get Severe diarrhea when ever i drink Milk in small or large amount since i was 12 year old before that i never face this...i also get Colic pain (severe) some time when i eat some thing bad and it only goes with i have Small acne on whole arms,cheeks,back like keratosis pilaris...I also get diarrhea from Grapes or strawberry...I never get constipated in my whole is the disease?