My son has pain in his lower abdomen and pelvis on the right side.  Could there be any chance of appendicitis? He has had issues in the past of nocturia and when he doesnt drink enough fluids sometimes when he pees it hurt.  What kind of issues could he have?
Hi...it looks like he is having infection of the bladder or maybe even stones...better get a urine routine and USG abdomen and show to your physician...