@law59 these symptoms are just so bizarre. My cardiologists gave me new diagnosis of inappropriate sinus tachycardia. Referred back to electrophysiologist and have consulted with neuros office. Our long covid neuro is out of office for another week but they have a compassionate nurse communicating with neuro in office. Validated that i dont have to run to ER when i experience hypothermia. I have to try hard not to let that happen again. Next step is getting the ME/CFS and PEM diagnoses. Right now i am experiencing a crash bigtime. Barely eating and almost completely bedridden. I did unload dishwasher this am and lo and behold finally took a shower. Showering has been challenging for me from the beginning. Its the standing in one place and heat/humidity. I love heated blankets btw...i have one too...my cat Bentley. Thank u for ur response. Sending good energy ur way!!