Hello,
The various causes of excessive sweating(hyperhydrosis) are stress and anxiety, adrenal disorders, diabetes mellitus, nephrogenic diabetes insipidus, hypercalcaemic nephropathy, metabolic syndrome ,multiple endocrine neoplasia II (MEN II) - also called Sipple's syndrome, renal tubular acidosis (RTA),hyperparathyroidism and sleep apnea.
My sincere advice would be to get an evaluation done from a dermatologist as well as an endocrinologist and get these evaluated. It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your dermatologist. I sincerely hope that helps. Take care and please do keep me posted on how you are doing. Warm regards.