Low TSH after GLP-1 use

I’ve been on compounded tirzepatide (Zepbound) for 3 months and lost 22 lbs, feeling great and back to a normal BMI. My doctor ran labs and my TSH came back very low (0.04), but I have no symptoms. Doing a nuclear scan next week, and my doctor hasn’t told me to stop the tirzepatide.

I’ve read that rapid weight loss itself, not the medication, can sometimes trigger hyperthyroidism. Anyone else experience this? Or anyone on a GLP-1 and treating hyperthyroidism while still losing weight?