Started getting dull ache on L side, around waist area (just below ribs) on the back. Hurts more with deep breaths. Kidney or muscle? Should I worry?

Sorry. I am sorry that you are having problems, however, doctors on this public site cannot diagnose or prescribe. We do not have access to be able to ask further questions and get answers. We cannot comment on any medication unless you provide the name. You need to take your questions to HealthTap Virtual Consultation. If you are in Texas, I will be glad to help you.