Stomach pain when eating and drinking?

Could be anxiety, gall bladder problems, or a host of other problems. I would talk to your parents and have them take you to see a doctor.

Ask your parents to take you to the doctor and, if at all possible, a Gastroenterologist. You could have an ulcer, a lactose or gluten issue, or something totally unrelated.

you most likey eat too much junk...like sugary foods and sugary drinks, candy, carbs....you will need apple cider vinegar and honey with water, in AM and bedtime to help balance out your sick body...and drink mostly pure water, no soda, no coca-cola...you will get better, AND take quality vitamins and minerals

You need to eat and drink. But don't too much.

Tell your folks. No one here can possibly know.