Done an sgpt test and it says on the result that mine is 66 (ref: 9.00-52 u/l (h). Do I need to worry? I am drinking ptu (propylthiouracil) for my thyroidism continuously

PTU (propylthiouracil) and liver . Drugs like ptu (propylthiouracil) and Methimazole can cause liver toxicity but hyperthyroidism can also cause elevation int the liver enzyme test you had done. If your still early in your treatment and your thyroid hormone levels (free t4) is still high it could be that. Hope this helps.