Well, now you're doing what I WOULDN'T recommend - lowering your dose AND switching back to Levoxyl at the same time - this is probably going to drop you too low IMHO. It's usually best to only change one thing at a time.
But given the difficulties involved in dealing with your doctor (REALLY common, btw) and the fact that you really don't want to risk going low and not having it picked up for a while since you are pregnant and we really want to keep those hormones in a good range for this baby, here's what you might do for now (I'm estimating, btw, that on Levoxyl your proper dose would probably be around 112 mcgs a day if your labs were slightly hyper on 125 of levoxyl but you didn't have symptoms, and the switch to generic pushed you into symptoms):
Start the 100 per day of levoxyl. Give it two weeks - that should be enough time for your T4 and T3 to come down (TSH lags and won't show reponse for 4-6 weeks). Try to get your doctor to test your free T4 AND free T3 after two weeks (maybe you could talk your OB into ordering it if you explained?). If they just won't test it then, and all your hyper symptoms are gone, email me and we'll talk about other options (elliestough@hotmail.com). Given what we know about the effects of maternal hypothyroidism on kids, I just want to make sure you don't slip too low.
And go ahead and skip one day's dose before you start the 100 mcg Levoxyl - it will give you a little head start on lowering your levels (T4 has a long half-life so you don't have to worry about fluctuations from a single missed dose). You should feel better in a week or two.
