You have already developed a serious hormone imbalance called autoimmune
thyroid disease. No wonder your periods are scanty and irregular. If untreated, it can lead to premature ovarian failure where periods can totally stop.
Next Steps
Good news is that it can be totally reversed if you choose to do so. I have helped many people reverse this condition and have healthy natural pregnancies. If you really want to know the root cause of your problem and heal it permanently , please read my blogs on www.truhealing.com or practo health feeds. Hope that helps....