Ache/pains below left rib cage.gp felt nothing abnormal.symptoms still here & making me feel nauseous.feels like pressure and sometimes like grumbling?

?gas: Below the left rib cage the colon takes a sharp turn and this is a common area for gas entrapment. Drinking hot water and applying a hot water bottle to the area helps break down the gas and helps you pass it. Taking simethicone 1/2 hour after meals prevents gas. Your physician is best to evaluate and advise you about appropriate tests and possible referral to a gastroenterologist if necessary.