Hi Doctor , I Have A Problem Of Constipation And

Hi doctor , I have a problem of constipation and heavy periods due to hypothyroid since last two years. Dr consult me to take 50 mcg eltroxin but after sometime it also creates the same problem then Dr reduce the dosage to 25 mcg but it could' nt help me. I take both alternately it helps me for sometime about six months but the problem remains the same after that.Not other medications of stomach helps me. Give me some suggestion and I'll very thankful to u.