With hyperthyroidism, it is a huge mistake to tweak your meds on your own. If you do, your doctor may not be able to figure out what dose you need to be on (if any), with any reliability. And, tweaking things on your own, when your doctor finds out about it, could undermine your working relationship with the doctor over the long term. And we are in this for the long term.
When you have questions like you now have, the best thing to do is call the doctor’s office and tell the nurse, and ask what you should do. Especially about the rash.
As for the weight question, gaining weight might be due to your levels of thyroid; it might also be due to your workouts. Building up muscle adds to weight. But our doctors are singularly uninterested in our weight issues typically, so don’t expect a whole lot of response just based on weight alone. There are way too many factors that enter in on our weight ups and downs for them to automatically assume it’s your thyroid levels.
