I sweat very much especially on the head while eating anything hot [by temp.wise!

I sweat very much especially on the head while eating anything hot [by temp.wise and taste wise]?

Sweating all the time during summer which leads to headache almost everyday

get checked for diabetes, because excessive sweating is one of the things that happens to diabetics, the headaches could be the result of that as well. It's a simple glucose test and not even painful and your doctor can tell you if he/she wants you to eat prior to it.
Take glyconutrients if you can afford it because they have been proven to be very effective in combating a lot of ailments(including diabetes). If you have the onset of diabetes it might just go away with glyconutrients....good luck