Ditto what makbike said. Be diligent with your meds, and you will be fine. I take mine at night before bed, a couple of hours after eating anything, because calcium interferes with the medication and I cannot possibly wait long enough after waking up for my morning latte to take it in the morning. But as long as you're on a regular schedule and appropriate dose, you should be fine.

I'm also on 150 mcg - the dosage is basically weight related. I find when my weight drops down below a certain point, then it is easier to lolse weight and I have more energy. I can really tell a difference when I am significantly about my "usual" weight, in terms of how much energy I have.

Good luck with the ultrasound. I also had some needle biopsies when I was first diagnosed to make sure nothing else was going on. Sounds like your is also postpartum as mine was. Auto immune issues often pop up after childbirth (and nursing) because your immune system is on overload and can go bonkers.