I Have Been Having Pain In My Right Flank That

I have been having pain in my right flank that started last June. They did CT scan and did not see any kidney stones. The pain has slowly increased (coming on every few weeks or so). I have just now realized that after I am frightened, there is increased pain in my right side and it is severe after the frightening event. the pain is pretty intense and slowly goes away after a few days. I'm wondering if this is an adrenal problem?? I have also noticed inability to handle stress from my job (with a few melt downs in the last 2 months) which is not normal for me. Exhausted! Slept 12 hours last weekend and wanted to sleep even more. Starting to get more and more headaches, which is not normal for me. And I sometimes feel nautious throughout the day for now reason. Also noticed I have been dropping things...not as coordinated. Not sure if all these relate, but I'm wondering if they do. I also deal with restless leg syndrome and have been taking Ropinirole for 2 years for that treatment. I feel like they are getting worse and I often feel wired in the evening and unable to rest my exhausted body. What could all of this mean? Thank you!