Good afternoon. Excessive sweating, or hyperhidrosis, manifests itself for physiological and pathological reasons. In the above situation, there is a possibility of such a disease as vegetative-vascular dystonia. With this pathology, the functions of the nervous system are disrupted, which leads to pathology of the heart and blood vessels. To begin with, it is recommended to consult a general practitioner. The therapist will direct you for examination, taking tests, and with the results will give you a referral to a narrow specialist - a neurologist. It is very important to watch yourself for any other symptoms. Have you noticed that you are more tired, eat less, etc.? You need to tell your doctor about everything, as this is important information for diagnosis. More information about the pathological causes of hyperhidrosis can be found HERE.
This occurs when blood supply is disturbed, or venous stasis, or vegetative-vascular dystonia (violation of the tone of small vessels). It is observed with various diseases (hormonal, systemic, cardiac), so you should consult a doctor. Quitting smoking, alcohol, dieting and normalizing body weight can solve the problem forever.