I read your questions and also stumbled on this myself. I am completely convinced that as muscles weaken there is cellular destruction and the voltage gated potassium channel is destroyed with an increase in serum calcium. I could tell the docs within 1-2 tenths what my potassium level was based on how good or bad I felt a couple of years ago. I was given supplements but as my concern over high calcium was ignored, I now have significant calcification s throughout my veins and lymph nodes. It caused my leg bp to increase and I passed out as I walked 7-8 steps often. I checked after many falls and found both ankles at 135/110 with arms always around 112/76. Even my cardiologist told me I had something similar to arteriosclerosis only with calcium plaque build up vs cholesterol plaque and in my veins, not arteries. Hope this helps understand it.