I am a 32-year-old Black woman. I am 6 months postpartum (PP). About 2 months PP, I began waking in the middle of the night sweating profusely to the point that I had to change my clothes. That lasted for about a month or so. I also felt like I had a mild case of PPD. I began taking Iron and I started to feel much better. At about 4 months PP, I got routine labs done as part of a physical. Everything including my Cholesterol, Glucose and Blood pressure came back normal. However, my TSH came back at 9.56 and my T4 was normal. My MD wasn t concerned because T4 was normal. To be sure, I went back about a month later (5 months PP) and had labs done again to check TSH and T4. This time TSH came back at 9.72 and T4 was normal. Today I had an ultrasound . The results are as follows: Nomal -sized thyroid with multiple tiny bilateral nodules. No significant lymphadenopathy . Some of the nodules were mixed cystic and solid with some internal vascularity and some were cystic with no internal flow. In 2009 and 2010 my TSH was in normal range. I was wondering if my new TSH levels could have something to do with Post partum thyroiditis . If so, could it normalize itself on its own. Does internal vascularity mean malignant? Please note, I have no symptoms of hypothyroidism other than the TSH being high.