Hi doc, my father had stroke in 1997 due to which he has clot in his brain. For the last few months he was very sleepy, inactive , weak, and having body balance problem along with constipation so we got him hospitalized there they found that his sodium level was very low 119 and it was the reason for all the above problems he was hospitalized for 2 weeks after that when he got discharged he started complaining of swelling and pain in legs at that time the doc asked to get few test done and it was found that he had hypothyroidism and he was prescribed Thyronorm 25 mcg. Doc my questions are