Period problems

Patient: I’ve been having a really irregular period first it was always on time then always different.But recently for the month of October and November..i have had my period 3 times and spotting in between.The first time it was Regular..only lasted 3 days then ended. Second time it lasted 3 days again but it was a week later after just getting off it the first time.then it stopped for a week and i was on it the third time for up to 3 weeks alone.what is wrong with me?