What Causes Spotting After Finishing A Menstrual Period?

Dear madam

I am a 31 year old lady having my first child on 17th june this year i am a hypothiroid patient for last 10 years after my delivery the postpatram bleeding was very severe that the doctor had to give me a medicine called trapic to stop it. It continued for about 6 weeks i did usg of lower abdomen nothing wrong was there and my doctor also did the internal checking ang the uterous is of its normal size. the bleeding stopped again i had my periods after 23 days it continued for 5 days but still spotting i breastfeed by baby Is it normal my dooctor prescribed me Dolutol L to regularise periods . please suggest wheather to take these medicines or not earlier i did not face any problem regarding my periodic cycle and bleeding was very low.


regards