I'm 75,was told last year to get the shingles vaccine, both wife and I got one, then about 6 weeks later got the required second booster.
Was told there could be mild side affects, there was, got a very light case of the shingles on the right side of my chest, then a cough the led to sinus infection and eye infection, knocked me down for about 3 weeks.

"The older I get, the better I was"