My DH has been in pain since mid morning and it's getting worse. He says he thinks it's muscular but I'm not so sure. It's on his back, on his right hand side under his rib cage. Any ideas of what it could be and what might help? I've suggested some pain relief, is there anything he shouldn't take if it's his kidneys or something else?
(Never had any back pain of any kind before, but he was doing intense DIY yesterday) He has a high pain threshold and it's making him gasp a bit.
Thank you.