Had a mild case years ago and it was awful; my sympathies.
Two tips from recent years, if you get a shingles vaccine going forward (I don’t know if actually having shingles gives you immunity):
1) If your insurance doesn’t pay for a vaccine, shop around. I was able to save 30% off the substantial cost of the shot; and
2) There are two main shingles vaccines on the market. One is made with aborted fetal cells and the other one isn’t, so look into that if you get inoculated.
You dont get unnunity from having shingles.
Typo immunity