Hypothyroidism Support Group
Hypothyroidism is the disease state caused by insufficient production of thyrohormone by the thyroid gland. There are several distinct causes for chronic hypothyroidism, the most common being Hashimoto's thyroiditis and hypothyroidism following radioiodine therapy for hyperthyroidism. Advanced hypothyroidism may cause severe complications, the most serious one of which is...

I had similar symptoms to yours with the swollen breasts and such.
It might be a good idea to test your thyroid levels right now to see what they are doing.
Anyway, I can still have kids - I am about the same as I was 3 years ago - periods are heavy to light - ovulation is varied (but still functioning) and my periods while painful have remained consistently inconsistent enough I can track them, ease them. )
Check out some dietary changes you might be able to implement during your cycle and pre-cycle times. I did this - it helped tremendously. HUGS!