Hi I'm 14, Female For Over Half A Year I've

hi I'm 14, female for over half a year I've had stomach pains last night it was so bad I was passing around my room for 30 minutes clutching my stomach I had an ultra sound the other day they didn't find anything... my doctor had me on acid relief for 2 months and my stomach has gotten worse. I don't have any food allergies. my doctor thought it was my anxiety I've been going to counselling and its been helping me but not my stomach aches. please help I used to be very social but my stomach is keeping me from doing much or eating much, please help me!!!