I have been getting a hot sensation through my body and sometime cold from abdomen and back and my hands feel tingly. I feel palpitations sometimes different part of my body and not where my heart is, even in my buttocks . It happens anytime and especially at night while laying, it almost feels as though I m running a race. I am currently on HCTZ and atorvastin ( lipitor ) spelling maybe incorrect. Please help, I want relieve and my mouth and lips feel hot and dry. I am not diabetic.