Hi I'm 17 years old.
I woke up 4 days ago for school so when I woke up my stomach was sore and I just igored it but then the following they I had the same problem but the pain got worst and it was there from the time I woke up till I go and sleep but then after 1 week I still had that pain but then that Saturday my stomach started to burn inside lightlY but I'm unsure what is that but the pain does not want to go
You should go to the doctor and explain your symptoms, it could be simple or you could have something like acid reflux (I have that)