Do i need treatment if my tsh 7.69 high normal free t4 and free t3 (liothyronine) and elevated thyroid antibodies?

Yes: Tsh 7.69 with high tpo is not "high normal" but high and indicates hypothyroidism. Having high tpo indicates autoimmune or hashimoto's thyroiditis. I suggest adding selenium zinc b complex and vitamin c and iodine and avoiding gluten for a month and rechecking levels in a month. If no change then you might need thyroid supplementation.

Hashimotos: Your lab values above indicate you have hashimoto's thyroid disease. You need treatment. See your doctor to discuss options.