Dear K.,
I had a similar situation as your's & it was VERY frusterating. I have a few suggestions that I found success with.
#1 Synthroid (is just what it says: Synthetic Thyroid) I was on this for months, felt jittery & it did NOT absorb correctly therefore I still felt poor. My "other" doctor switched me to Armour thyroid (Made by Armour hotdog company) Natural & absorbable form of thyroid.
#2 I exercised for a year 3x a week with little to no weightloss, before I got on a correct dose of thyroid, so ask your dr. to take more blood tests, and if I start to feel poorly we re-adjust my dosage.
#3 I did meal replacements with bars I made from Figure 8 shake powder (high protien, low sugar mixes) www.naturallylovely.myarbonne.com along with salad for lunch & a yummy dinner. I stayed around 1300 calories a day for 4 weeks and lost 12 lbs. I did not get rid of carbs, you need them to think & function along with LOTS of green veges. YOU CAN DO IT!!! :0) If you need any help, encouragement, ideas please message me. G