long ass period??

hi girls, i just after abit of advice. so, 4/5 years ago i was on the pill. i ballooned to 16 stone so i stopped taking it, obviously it stopped all my periods and after i stopped taking it i was hoping my periods would go back to normal, nearly a year went by and i didn’t see a period so i seen a doctor, bloods were taking and there was no underlying serious problem. only that i was over weight, so two days after i had bloods done i come on a period it lasted 12 days, normal flow. 15 days after i come on my period again, i’ve been on 18 days now. not a heavy period just light/normal. i’m still very concerned about this l. should i see a doctor again? or shall i leave it because my periods are obviously going to be all over the place now as i haven’t seen one for nearly a year ?