Heavy period flow

I know a heavy period is pretty normal in some women, but I just can’t shake that this is normal… I have a period this heavy for at least 3-4 days and than medium to light flow for 4-5 days longer. I’ve went to the doctor multiple times and they always tell me they can’t find anything. I had my tubes cut and burned in Sept. 2016. I plan to have them reversed this year, permitting I have the money to do so. I guess what I’m asking is… should I keep going to the doctor to see if there’s anything wrong or just wait it out…