Hello mam, As u mentioned that since beginning your periods are irregular, first off all one has to evaluate your case in detailed to rule out the causes of irregular menses. Some investigation will be required after primary detailed history to arrive at the Confirmatory diagnosis. Secondly is the overweight is the part of the syndrome for example because of Hypothyroidism or it is completely different from your menses issue. Over weight itself has many causes which also has to be investigated in detailed Based on thorough history & Final diagnosis the physician will be in better position to help you by give appropriate Prescription. Homeopathy will help you in many ways irrespective of your diagnosis....Homeopathy can balance your inner disturbed metabolic functioning if any responsible for irregular periods & will also have beneficiary effect on managing your weight along with appropriate Auxiliary measures like diet management, Regular exercise to manage your weight.