I'm A Kidney Transplant Patient (9 Yrs Out) Taking Prednisone,

I'm a kidney transplant patient (9 yrs out) taking prednisone, tacrolimus and myfortic. Have blood tests every 4-6 months. Recent results of thyroid panel who a high T4 (12.7) - normal max is 12, and high normal T3 (38, with 24-39 as normal) and a high normal Free Thyroxine (4.8, with normal 1.2-4.9). Can't see my regular doc til late next week and wondering if I should back down on my levothyroxine for now. Had 80% of thyroid removed 20 years ago.