Upper back pain and throat tightness along with constant throat clearing, stomach feels weird and bloats right after eating. is this acid reflux?

Possibly: however, your symptoms are also suggestive of gallbladder disease ( stones or inflammation ). Get examined a get an abdominal ultrasound.

Explanation : Difficult to tell. Not enough information for diagnosis. It needs to be evaluated by doctor. You can try trial of medication OTC. Prilosec 20 mg 2 times a day for 2 weeks. If no improving go to see a doctor.