About to scream

do

So I'm down to breastfeeding once a day. My period came back several months ago. My first 2 were normal 7day periods 28day cycle. After that I've been so messed up. I've had random spotting some lasting a day sometimes lasting more than a week. I have no idea what's going on. Idk if I need to just ride it out or talk to my obgyn to see if theres anything I can do to help regulate it. Anyone else experienced this?