After going through your history, I am of the openion that your are a chronic hypertensive with hypothyroidism
). Hypothyroidism refers to the condition due to low levels of thyroxine in the blood (thyroxine is the hormone produced by the thyroid gland) and it is treated by supplementing the deficient hormone that is thyroxine so the medicine your are receiving for your thyroid problem is levothyroxine
and there is no alternative for it.
Since you are taking many medicines for the control of your hypertension
it may be necessary to monitor your blood pressure and serum potassium levels mainly.
But, the drugs which your are taking for hypertension do not interact with levothyroxine.
And also taking levothyroxine in the appropriate dose might help you in better control of your hypertension, as hypothyroidism worsens hypertension.
Wish you good health.