Stomach Ache No Touching Every Time After I Drink A Cup Of Coffee I Become Jittery And End Up With A Severe Stomach Ache. Why?

Every time after I drink a cup of coffee I become jittery and end up with a severe stomach ache. why? - stomach ache no touching

It's more than nervous, my stomach hurts to the touch and affect the hour. My eyes start watering and your nose starts running, as I have experienced an allergic reaction. It was always like this, because I drank the first cup of coffee. I've tried to tan before, but always had the same reaction.