Does this constitute going to see a doctor? I saw chiropracter for adjustment during the school day. Mom made me.

Sure. It certainly does.Should your mom take you out of school? Up to you folks.
No. You have perhaps had massage but no diagnosis or real treatment. Chiropractors are not doctors however your school will probably excuse you for the time you went to see the chiropractor. You should be seeing an orthopedic specialist if you are having musculoskeletal problems at your age to prevent problems at a later age.