The oter night while at a friends house out of no where I started getting extremely hot. It wasn't anywhere near hot in the house as I had been cold the rest of the night! And then I started getting really shakey and dizzy to the point where my husband and I had to go sit outside just so I could cool off. I know I wasn't dehydrated because I had been drinking water all night. Anybody experience this before? Is there a name for it? Is it worth mentioning to my doctor or is it something normal?