Muscle aches often respond well to home treatment. Some measures you can take to relieve muscle discomfort from injuries and overuse include: resting the area of the body where you are experiencing aches and pains. taking an over-the-counter pain reliever, such as ibuprofen.
Through the negative feedback loop of TSH levels, this should actually lower your TSH and eventually get your hormones back on track. This can take anywhere from 1 to 3 months depending on your initial test results and the dosage of Thyroxine you are taking.
In brief: 6 weeks. You have not gotten up to a stable blood level after only 10 days; that takes 6 weeks. It also takes the same length of time to decrease back to pretreatment levels when you stop it. Make sure you're on the correct dose and taking only brand name T4 replacement.