Recent blood work tsh:0.39 t3:63 t4:5.4 and a painless lump in the lower right side of my neck for over a year, it doesn't change in size, is it normal?

See endocrinologist: The lump may or may not be thyroid. Your thyroid blood tests are confusing, all are on the low side. Are you taking thyroid hormone supplements? For starters, i recommend seeing an endocrinologist, getting a thyroid ultrasound, and repeating the labs by a reputable lab. The lump could be part of a benign goiter or cyst, but you need to check for something more serious.