I have had an underactive thryroid for 16years. Firstly had thyroxine but it made me feel rubbish, then my GP let me try Armour then Erfa. Now I cannot get NDT on the nhs so have been forced to purchase it myself. My question is, I was thinking to go and see someone private but seeing as I am medicated I'm not sure how I would go about this.? Any advice appreciated. Thanks.