Are there any blood pressure drugs that can be used as needed?

I know most BP medication you have to take daily and you aren’t supposed to stop and start.

I’m not on any medication right now. My blood pressure is often 130–140 over 85–95.

I just got through a week of 160/100 during a lot of the day. Really high.

Yesterday, I started to go back to normal again and it continues today. 115–120 over 65–75.

I did make some changes. I started to increase my thyroid meds a little and I have been eating less, including consuming less salt since I’m eating less food.

I asked my doctor about a diuretic when I have a few days very high, but she seemed uninterested in that idea, she didn’t explain why. I have no idea if that is a thing, I was just asking.

I’ve tried a few endocrinologist to try additional t3 again, my t3 runs very low normal or slightly below normal even when my TSH is good. 20 years ago when my blood pressure was high I knew my thyroid was undermedicated, but now it is not as straight forward. Doctors seem disinterested in listening to me about how my thyroid is affecting my blood pressure.

I already am having damage to my heart from the high BP.