my mother is an 85 year female with rheumatoid arthritis. She constantly complains about her stomach hurting. She takes opioids for pain around the clock. She takes prunealax to keep her bowels moving, which helps but she constantly complains her stomach hurts. She says its a gripping feeling. We ve got her to increase her water intake and her bowels flow but she is constantly in pain from a stomach ace. she says it aches constantly and her appetite is diminishing. I give her hot tea that sometimes helps but it never goes away. Could it be the pain meds causing her stomach ache?