Frustrating labs

I just got back my labs ahead of my local endo visit next week. In March, my TSH was 0.6 and my thyroglobulin was 3.0 with negative antibodies. T3 and T4 both in the normal range. Now, T3 and T4 are about the same but TSH is 1.4 and Tg is 4.1. I haven’t changed dose or timing or anything else. No other weight or supplement changes either, so I just don’t get it.

MD Anderson visit is in July and they said they might order additional imagine based on what these results showed so now I’m freaking out about a (slow) upward trend appearing. I messaged them, so we’ll see what they say. My husband was just diagnosed with prostate cancer so the timing of a possible recurrence is just awful.