Last night it happened to me again thou I can control usually if I get symptoms or not, by keeping my activity level way down. Last night I got a very mild subclinical fever for no reason at all (my temp suddenly goes up .4-.5 celicus more then it usually runs at (the temp shift wasnt female hormonally related). These fevers when I get them are accompanied by a frontal headache.. the one last night strangely felt like an ice headache. The last 3 times Ive got one of those fever/headaches.. I find myself quite badly emotionally affected too, depressed to the point where I truely dont care if I live or die. This feeling comes in with the fever. When all that when it happens (it actually happened just before I knew my temp had gone up) I can also start heat craving.. feeling like Im needing an abnormal amount of heat. The heat craving last night sucked as I was sitting on the heater due to feeling strong need to be very warm, while at the same time setting off the POTS due to the heat . Those 2 symptoms do not go well together at all. Im back to usual self and symptom free again this morning. Im wondering why my emotions could be so badly being affected everytime I get one of those subclinical fevers which come with mild headache? (I did have some malaise with the whole incident which wasnt post excertionall).