Uptick in subclinical hyperthyroidism?

Over the last 6 months, I have diagnosed more new onset subclincal hyperthyroidism cases than I have ever seen. It is at least 4 fold. at least. Repeat TSH confirms original findings. Normal T3/FT4. We use several labs around town, all with the same findings. Is anyone else noticing this as well?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Family Medicine Source Type: forums