If your medical is still valid, and you're no longer taking medicine or having high blood pressure (meaning that you had some underlying cause for high blood pressure that has resolved), than you should be fine to solo, and you'll need to document the medication during your next medical. Since you didn't act as PIC while you were taking the meds, you've done good so far.
If your medical has expired, OR when you go get your next medical... I'll let one of the AMEs explain what you should have before you go see YOUR AME so that you can get issued quickly.