My son has acid reflux but takes only over-the-counter meds. he throws up every morning and now has blood.he also just recently seen blood in his stoo?

See MD: At this point the over the counter medications are not sufficient. Evaluation for serious issues by a doctor need to be done. Blood in these places is not normal and requires evaluation by a doctor in person.

Needs GI: He needs to see a GI doctor ASAP and should really have a scope from top (EGD) and below (Colonoscopy). Best wishes.

Acid reflux: The blood may be coming from the acid causing gastritis of the stomach leading to the bleeding. See a gastroenterologist for help