Thanks for your question on Healthcare Magic.
I can understand your concern.
In my opinion, we should first rule out
arrhythmia (rhythm disturbances in heart) because this can cause fast heart beats and hot rush kind of feelings.
So get done ecg, 2d echo and Holter monitoring (24 hours continuous recording of ecg).
If all these these are normal then no need to worry for arrhythmia or other heart diseases.
Stress and
anxiety can cause also cause fast heart beats and nervous sweating in palms.
So better to
consult psychiatrist and get done
counselling sessions. Try to identify stressor in your life and start working on it's solution.
You may need anxiolytic drugs too.
Don't worry, you will be alright. Avoid stress and tension, be relax and calm.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.