Hello. Over the past 3 weeks I've been experiencing some lower abdominal pain. It isn't constant; it comes and goes and I've even had a few days where the pain is gone completely, only for it to return the next day. I'm a 17 year old male, 165lbs, and in pretty decent shape.

Its generally a dull, non-localized pain across my abdomen, but sometimes will have a localized, but still relatively mild, pain just below my rib cage and above my right hip. I can perform most daily actions without pain worsening. It only hurts worse when I press on different areas with my hand. 

So far major symptoms I've dealt with are:

-Sporadic Abdominal Pain

-A fair amount of excess gas (from both ends)

-Sporadic loss of appetite

-nausea (rarely)

After things persisted for about a week, I took a trip to urgent care (I was away from home). I was told nothing major was occurring and was prescribed an acid reflux medication. They conducted blood and urine tests and found no sign of infection. X-rays found no sort of buildups. My stools have been relatively normal as well, with only one episode of diarrhea in the early stages but nothing more. Lately I've been feeling a bit more constipated but still pass stools daily.

No online research has helped (but definitely scared me