I am a 56yr old female. Briefly, in 06 i had a pituitary tumour removed as a result of dx of acromegaly (excess growthh hormone). Shortly after, dx with Parkinsons Disease, followed shortly after that with 3 total knee replacements (one was unsuccessful)as a result of joint damage due to excess growth hormone ). I now appear to have PN as dx by a pain specialist! However my neurologist says i don't have it and he doesn't want me to think i do!!! However i don't know what else could be causing me this severe pain (mostly at night) in my feet, sometimes going up the leg to the knee. Wakes me up at night. Am on Lyrica 75mg x 2 daily. What is also concerning me and i wonder if it is PN is that i have quite severe contractions of the skin on my scalp, i know others can't see my forehead contract but it sure feels like they could! Is thing PN?? My neuro seems to think my symptoms are of Parkinsons and it could be so, it also could be an overlap. I was wondering if the knee surgery has damaged some of the nerves because you have a tourniquet on for about an hr or so and after surgery i noticed a small amount of numbness in one toe, but thought nothing of it, now it is widespread over the toes, with redness appearing every night . I would appreciate any thoughts. i am not sure where to post this. A great site. Thank you.