Long periods after lletz

Hello everyone.

I had a lletz treatment in April this year and again a deeper lletz to remove cin3 and cgin on July 7th. Since then i start bleeding about a week before my period. I know its not my period as these are painfull and follow on for another week after the bleeding. Its not as heavy as my actual period. I have had periods of about 10 days without bleeding. Is this normal and has anyone else had this.