Pain in left side lower abdomen. Refer.

I feel slight pain in the left lower side of the abdomen . The pain is not constant and not trouble some .i tried to do some movements but no issue with that ...Tried to check symptoms for kidney stones .My height is 5'11' inches and my weight is 87-88 kg......i checked for symptoms they do not match I have searched on net to match the symptoms with what type of disease i am suffering .I know that my uric acid content level is approx 7 which is the border line a few months back... sometime i feel slight pain in the knee area but that is rare . I used to play till a few months back and i have left gym 7 months back due to work load in office . Is it normal or due to some disease .Which type of doctor should i refer .