If you are hypothyroid...you really shouldn't stop your thyroid medication. If you go to www.mayoclinic.com
and read up on hypothyroidism and what it can cause you will understand how important it is for you to take your medicine. I'm glad you are back on it now
Did they tell you to take iron? If you are bleeding that much then you will become anemic. You can get a multivitamin with iron to take....at least until your appt with the GYN.
I hope you get some answers from your GYN. Have you ever had fibroids?