Hello, i. As your ultrasonogram is normal thus it might be a common gastrointestinal symptoms [diverticulitis, celiac disease thus you should contact either a general surgeon, gastroenterologist, and if not sure consult your GP who after reviewing your case history and physical examination will refer you to specialist concerned. PS. The most common diagnoses of lower abdominal pain relate to uterine, gonadal, renal, and bladder complications, [less common causes like primary dermatologic and musculoskeletal problems as well as referred pain and neuropathies related to underlying vertebral and spinal cord complications can also occur], so examination is mandatory for further workup and management. 2. since the pain is unexplainable thus it is wise to check with your doctor since persistent or chronic pain should be examined to rule out any serious underlying causes. PS. A doctor can diagnose the cause of the pain and develop a treatment plan that will address the underlying cause of lower left abdominal pain. 3. As your Hemoglobin is high and you are a smoker too thus seek an opinion of Pathologist/Hematologist or Medicine specialist as high levels of hemoglobin can cause abdominal pain and also predisposes to blood clot formation so check with your coagulation profile like INR (international normalized ratio), CT (clotting time), PT (prothrombin time), BT (bleeding time), PC (platelet count). Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr. Munish Sood