Tsh 0.01 normal is 0.40> t3 free is is 4.3 normal is 2.3-4.2 t4 free 1.8 normal is 0.8 to 1.8 is this dangerous ? life threatening ? help please

Hyperthyroid: Hi. You're hyperthyroid. At your stated age of 26, it's not life threatening, but my advice is always to treat it. As you can see from the numbers, yours is fairly mild (we see hyperthyroidism a lot more extreme), but it still places you at risk for an accelerated heart rate and irregular rhythm, and feely not-so-well in many ways. It could be one of several conditions. See an endocrinologist.