I think i have pancreatitis pain under left ribs, unable to eat due to nause vomiting feeling very unwell no energy and take 2400 mg gabapentin daily?

Go to ER: This type of pain can be life-threatening. You need to be checked out and have labs done. Perhaps your diagnosis is incorrect? The Appendix is on the left and if it ruptures your dead. Let a professional examine you and diagnose your pain before it gets worse, If you have a local Doctor call them now If none of the above call 911 and get them to take you to nearest ER