Excessive sweating. Mg 1 tablet a day.

For the past one month around l am sweating excessively only from underarms & below the breasts, (not on my face head or neck or back ),it is more on the left side, this is throughout the day, & at night l wake up in the middle of the night to change,due to my gown being fully wet including the mattress.my bp is normal 130/78, measured at 3  different places & time. I went for echocardiography LVEF 66.5% & no arterial pulmonary hypertension,the impression was diastolic disfunction. My doc has told that nothing to worry,heart is strong, but my worry is the water dripping continuously due to which l am unable to go out, & also disturbed sleep at night, any remedy please.the doctor has not given any medication for this, my HbA1c is 7.5. & Average 165 & l am consuming Dynaglipt M 500 mg 1 tablet a day.