It is quite unusual to have hypo tension and raspy voice in Hashimotos hypothyroidism
. One possibility is that you have cortisol hormone deficiency
which is associated with Hashimotos. That can present with hypotension
, blood electrolyte abnormalities and increased pigmentation of skin.
If I were your treating doctor I would have ordered a serum 8 am cortisol, sodium potassium first and then decide on treatment.
Hope I have answered your query. If you have any further questions I will be happy to help.
With warm regards,
Dr Ajish TP (MD,DM)