Hashimoto's and deliberate cold exposure

Does anyone here have Hashimoto's and use cold water exposure regularly? I've been getting into cold water plunges and cold showers but am starting to wonder if cold would be contraindicated for those with thyroid conditions like myself. The cold seems to be helping my mental health but I'm starting to worry about damaging my thyroid even more than it already is. I've tried to do a little research on this online but it's hard to find any conclusive answer.