I ve stopped to take thyroxine coz it was unecessary for me (tsh 3.2 at beginning). Does my TSH will raise up and slowly decrease or stay stable?

TSH/levothyroxxine. Anyone who takes levothyrxoine whether they have hypothyroidism or not will tend to have a lower tsh. So when some stops levothyroxine the TSH will tend to go up. Hope this helps.