What may be the cause of severe pain upper abdomen not responding to any NSAIDS and TRAMADOL Pain even aggravated on taking NSAIDS and TRAMADOL. Upper GI endoscopy, hpylori test, USG abdomen and CT Upper abdomen all are normal. Pain only partially responds to inj.

Pentazocin. Initially these type of pain started after taking mushroom and lasted for 1-2 days but now occur frequently and last for 10 to 15 days.