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.
Extra heartbeats and a racing heart may also occur. An abnormal heart rhythm called atrial fibrillation may occur when TSH is low. Sometimes the hormone abnormalities related to low TSH have such a negative effect on the heart, it leads to the development of a heart muscle disorder called cardiomyopathy. Heart failure can occur with this condition.