I've been getting flu shots since 2009 when I got really sick for about 2 months with some bug that just wouldn't go away. So far, things have been fine, with just "regular" colds.
Not this year.
I noticed I was starting to get a sore throat on Tuesday, and by Wednesday night I could hardly speak, and was running a fever.
"Dr. Mom" insisted I got to bed early, and loaded me up with some OTC stuff that helped. Thursday I stayed home from work, and Thursday night I had one of those coughs that kick in about 3 minutes after you lay down, making it rather difficult to get any sleep. I called in to work Friday morning, and my boss told me to STAY HOME, as we're too close to leaving to have me come in, spread something around, and have everybody else sick just as we're getting to the launch site.
Friday and Saturday morining I was pretty 'zombiefied' from whatever hit me, AND the cold meds, so I just kicked back and didn't do much.
I went in to work today at 0800 to help set up and run the final RF testing we do before they lower the rocket, and roll it back in the hangar, and everything went smooth as silk. We were finished by 1430, and rather than hang around, I came back home to take it easy. Tomorrow we'll get all our gear on the platform stowed for transit, and then wave them off Tuesday morning, with us following 4 days later on Saturday.
There's a nasty bug floating around out there, and I hope it misses you....