I understand your concern.
It is more important that you get treated for all the problems. Hypothyroidism
definitely causes irregular periods
. It is probable that you may have PCOD too.
Get an ultrasound
scan of the pelvis done to check the uterus and the ovaries.
You need to take the right treatment. Overweight
is again a factor causing irregular periods. Please reduce your weight.
You will definitely be normal, once you are treated.
All the best and get well soon.