Hi, am new here and only just posted earlier... about being undiagnosed but got many symptoms of underactive thyroid and my mum is diagnosed. Am on the way towards blood tests and a Dr Peatfield appt over the next month.in the meantime I'm very anxious and exhausted and the only thing I find helps me to just stop is valium. Otherwise I am too twitchy to try and do things and end up more exhausted... But I wanted to check, am I potentially damaging my thyroid further by taking valium?? I feel like it's the only thing to help me over the next few days... temporary of course as I know it is addictive.