I had shingles at 28. can i have them again, i'm in my 50's.?

Yes: Shingles can recur. “Healthy adults 50 years and older should get two doses of Shingrix, separated by 2 to 6 months. You should get Shingrix even if in the past you: had shingles, received Zostavax, are not sure if you had chickenpox. There is no maximum age for getting Shingrix.” REF: https://www.cdc.gov/vaccines/vpd/shingles/public/shingrix/index.html