I haven't had the unctrollable shivering problem for a while, but it's back. I'm not cold. It's a warm sunny day and I'm shivering away, teeth chattering. It's utterly weird. I do get the hot and then cold - shawl on, shawl off thing but the shivering seems to go on regardless. Is it POTs, ME or what? I don't think it's FM. Anyone else get this? It used to happen when I got cold and then no matter how warm I got later the shivering wouldn't stop. But this time it has just started without any particular reason - unless it's because I am burned out from a stupidly busy week... dunno.