Hi I m a 53 yr old male yesterday I starting feeling very hot and started sweating bad felt dizzy and like I wanted to pass out, I wasn t doing anything just standing and talking to friends . I want outside for fresh air and felted better after 20mins
I read your question carefully, and I understand your concern. That description could have several explanations like deny Chat Doctor.  At times when the episode is isolated and transitory no cause is identified even after physical exam and extensive testing. So what is recommended especially if the episode repeats is a heart assessment and some routine blood tests like blood count, blood sugar, liver and kidney function tests, thyroid function, electrolytes, vitamin B12 level. I hope to have been of help.