Would recommend seeing an endocrinologist for ultrasound guided FNA biopsy of this cystic mass. 95% of these are benign and most do not require surgery. Likely there was recent bleeding into a small pre-existing nodule or cyst. This usually improves in 3-4 weeks.
I also just all my blood work back in today also. The ESR (SEDIMENTATION RATE) was 42, the T4 FREE is 1.19, T3 is 125, and the TSH is 1.63.