From the research I have done, the back of your brain, somewhere controls your involentary functions(breathing, heartbeat, liver/kidney,etc.). I think my kidney trouble is
related to the cyst. I dont mean
to rant about my
symptoms, but you are the first person I have come across, that has the same location of the cyst =) There is no doubt in my mind this is why I have headaches, I would guess the same can be said for you. Let me know if you are having anything like I mentioned.