Have had some serious health issues that have escalated over the past year - have stabilized blood sugar with diet to control serious hypoglycemia (diet from an endocrinologist); controlling some sports-related osteoarthritis/compressed disks in my spine with Motrin regularly and cyclobenazprine rarely, as needed; regularly receive chiropractic work; I am also in the process of being treated for endometriosis with Lupron (has been working wonderfully, alleviated a lot of pain so far) and still, I occasionally have these weird attacks of extreme fatigue and weakness that seem unrelated to any of the previous conditions - severe pain and weakness, primarily in my arms and legs, thighs and upper arms mostly. Crippling all-over fatigue. Sometimes it hurts to stand, or is very difficult to walk up stairs. During these attacks, I have difficulty lifting small amounts of weight (like an 8 lb cat, or just lifting my arms is painful). Let me add that I am 32 years old, very physically fit, and am active every day. When these attacks are over, I am again able to lift at least 50 lbs quite easily. Thought previously these attacks may have been related to the hypoglycemia or endo, but both of those are being managed successfully and still these attacks occur. They are definitely related to the weather. We have thunderstorms and possible tornados rolling in tonight, and I've had pain and weakness for several days now. Sometimes the attacks last a few days, sometimes a few weeks. They have been increasing over the past few years in duration, intensity, and frequency, and have been going on for about 10 years now. They were very infrequent at first. Motrin and other medications do nothing for this pain, whereas with the osteoarthritis in my spine, it helps quite a bit. I was given prednisone for a muscle tear in my shoulder a few months ago, and felt amazing - had so much energy! Apparently this is in the treatment for PMR. I am trying to figure out a diet/treatment plan that will help with all these conditions. I am trying to get in to see my doctor to get a referral for a rheumatologist to hopefully get all this figured out. My job requires physical labor - it's incredibly frustrating to have these attacks and not be able to work, or to have to work anyway and be in constant pain. Or drop things because my arms aren't working. Causes for PMR? Diet? Meds? Anything helpful? Could this be something else? What is causing this?