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.
Patients suffering from low TSH usually have high T3/T4 hormone levels. Since having a low TSH level is usually associated with hyperthyroidism, which causes other symptoms, it's important to do everything you can to get your TSH levels back to normal and prevent it from dropping again.