Shingles is the adult manifestation of the chickenpox virus, a herpes virus that once you have it, you have it forever. it can flare up later in life. the vaccine for it is incredibly effective at preventing heart disease (source: https://www.acc.org/about-acc/press-releases/2026/03/16/19/33/shingles-vaccine-drastically-cuts-risk-of-serious-cardiac-events ) so please help yourself and your community and get vaccinated today!
Assuming you live in the US, you could go to a pharmacy that does vaccines (most of the big ones) and get a shingles shot as long as you are over 19 and say you have an immunocompromising illness. And theoretically your insurance should pay for it as well. The paperwork and online scheduling/screening software won’t ask or care about specifics, though if the pharmacist is curious, they may ask.
There isn’t much data to suggest getting the vaccine earlier would be particularly helpful if you are immune competent, but you can do with that information what you will.