Can mid back problems cause spasms and aches on right flank, back and stomach? no aneurysm, infection, kidneys pancreas good. pain spasms come and go

Yes: Spinal conditions which can cause this include degenerative disc disease and spinal instability (flexion/extension xrays can help to confirm this). Other causes include ovarian cysts, appendicitis, digestive issues e.g. Lactose intolerance, etc. If symptoms persist you need to see a doctor for an exam and some more testing. Hope this helps...