I also developed a strange rash (the "Katrina Pox") after receiving numerous vaccinations prior to spending a month in New Orleans patrolling after Hurricane Katrina. Interestingly, the CDC was on hand to evaluate / sign of on us after the deployment prior to us being allowed to go home. While several docs evaluated my case (and others who had similar conditions), no explanation was ever offered. To this day I wonder if I was the unwitting volunteer for some experimental drug...
I was in the Reserves during the Swine Flu scare in the ‘70s and got sick for 3 weeks from the mandatory vaccine, even though the pandemic never happened.