Hi. My husband has had pain on his right lower side of stomach lately. The pain is there only when he's standing up but the pain is gone when he's in bed laying down. He's 65 years old and hypertensive. He takes Ziac, Pletal, Vastarel, Captopril as maintenance drugs. He also has hietal hernia and GERD and for this he takes Zantac at night. What could be the cause of the pain on his lower right side of stomach? He's wondering if his medications interactions may have something to do with that sudden pain.
I would appreciate if you could give some advise regarding his condition. Thank you.