Welcome to the gastroenterology community! It could be lactose intolerance. I would recommend eliminating 100% of all lactose from your diet to see if that helps.
The faint pain is actually indicating it might be something else. Write into your calendar when the pain is there, and see if it is cyclic. Test if it gets worse when you eat lots of sugars.
If yes, I suggest a parasite test and a scotch tape test.
its actually all the time, i know it cant be from sugar because i was testing to see if it could be from going for months with out drinking soda and the pop didnt start it or end it. I do have awful indigestion ALL the time. i wake up with it so bad that water hurts my stomach to drink, the only thing i can eat or drink first thing is coffee. in the morning milk does cause bad stomach pain but never during the day. And i do have a past history of cycts and I did start using the nuva ring a few weeks before this all started. and its not only the side that i get that sharp little pain, its on both sides sometime right in the center of my lower stomach. COuld this just be a very long case of bad indigestion? Maybe begining of ulcer. I am under a lot of stress latley. maybe best to see doctor?
It could be lactose intolerance. I would recommend eliminating 100% of all lactose from your diet to see if that helps. Seeing a doctor would be a good idea.