I am experiencing dull pain on left side of abdomen above hip from last 1 month. my left leg pains while walking or going upstairs. i have checked for?

Exam needed: Possibilities include inflammation of descending colon, inguinal hernia or left urinary tract pathology. You don't mention what tests you've had. I recommend an evaluation by a gastroenterologist and abdominal surgeon as well as urinary testing. Referral to an orthopedic specialist may be recommended if gi and gu problems are ruled out.