Ive had Hypothyroidism since I was 35 turning 51 in two days. 1st take your pills every day and I mean every day.2nd start to listen to your body if things do not feel right talk to your Doc. 3rd if Doc tells you your in range and you still don't feel right tell them again. If they don't listen you might try anther Doc.4th give meds time to work when and if you change dosage. Also check in to Armour thyroid (pig thyroid) this really helped me along with the synthroid.
Talk to pharmacist about this (I Never take Generic) you want this to be consistent generics tend to fluctuate. This isn't something you want to mess with your thyroid controls allot of your body functions as you will learn. For me exercise really helps and a good diet.