Hello, since last 3-4years I'm experiencing extreem PMS symptoms like palpitations, back pain, depression, irritability, fevers, body pains, dizzyness,headaches/ tightness in head ,unable to concentrate, severe  hairfall , heavy bleeding mostly and irregular for evry 16-21days cycle ,all these just a week before to till period day...I have thyroid and using electrician 100, pcos, hemoglobin 10-11, boarderline diabetic. Post delivery all these have increased ..I don't have these before. What tests should I get done and what deficiency is causing all these in extreem. It's sooo extreem that the little stress or anxiety is causing me to get untimely period and also sometimes loosemotions.