What Do Pain And Pressure In The Abdomen On The Right Side Indicate?

Female age 57: I have had off and on right side pelvic pain (ovary area) mild to severe pressure and cramping for over 6 weeks. My health Insurance provider declined a subsequent authorization order from my PCP for a CT scan after the internal ultrasound could not find anything of note. BCBS wanted a urine test and a lipase and amylase blood test first with out any explanation. 1) What are they looking for or trying to rule out? The results were only a little high on the Amylase level. This delay in discovery is most disconcerting... The PCP staff suggested I alter my diet (less fat and carbs/sugars) which is already 90% vegetarian low dairy, occasional fish, lots of veggies/fruits already, so I don t see how much more I can change. What I ve read indicates there is not much you can do to reduce your Amylase since it is the bodies pancreas or salivary glands reaction from increased production or a decrease in clearing. 2) Your thoughts on diet idea? BTW: I have a history (2 surgeries) of endometrioidal cysts with one rupture both in my late 20 s. This screams gynecological to me. 3) Any info or suggestions to offer?