You have not mentioned your blood sugar/ HbA1C levels. Anyway your symptoms appear to correlate with 3-4 conditions. 1.Hypoglycemia
(headache and feeling hot/perspiration). 2.Peri/postmenopausal sympyoms(hot flushes/headache). 3.High blood pressure
. 4.Migraine. 5.Trigeminal neuralgia
. So get checked for these conditions and treated by concerned specialist.
Best wishes and warm regards
Dr RAVINDRA MATHUR