Well actually I have been to the doctor about this.I just never mentioned the stuff I was doing at the time in fear of being "cut off"My GP hadn't a clue and sent me for an MRI of my brain which came back normal and unremarkable which I found to be both relieving and insulting lol..I also had another doctor who said the could be ware on the casings on some nerve endings,not unlike a old worn out electric wire..But also said he was just guessing...perhaps the Lethargy is only w/d based and the other is something else..I figured if the docs where stumped perhaps one of you guys had heard of such a thing.