To format a computer means that all your data will be lost. Your operating system, programs, emails, drivers, pictures, everything! All of the updates on your programs will be gone, infarct the every entire program will be gone.
This drop in TSH is an attempt to return circulating thyroid hormone levels to normal. So, a test to measure the amount of TSH in your system will usually show lower than normal TSH when the thyroid is overactive. So, in general, LOWER TSH = OVERACTIVE THYROID / HYPERTHYROIDISM.
If you have too much thyroid hormone, your TSH will be low or absent. Even slight changes in TSH level could signify a serious health risk. The problem is that most patients and many physicians may not be aware that a change in thyroid prescription may change the TSH and pose serious health risks.