There are a lot of ground nesting bees. Most solitary, some in small numbers. Yellow jackets can be very numerous, you would probably get nailed by more than eight unless it was a starter colony.
When I got my first set of stings that was a problem, I had just one sting me when I was walking down our garden steps and hadn’t noticed the little guy. That one wasn’t too bad. Only a swollen foot.
About 2-3 weeks later, I got stung by 2 and one of them got me directly in my vein, right on the inside of my elbow, like where they draw blood from. It felt like an injection, and even though I did a lot of the right things, I got a very badly swollen arm from my shoulder to my hand and fingers. I got a bacterial infection from the little guy, so antibiotics became necessary beyond a steroid. It was nasty. Easily was 2 weeks before my arm became normal looking (not after the steroid, but total time).
That’s when the doctor suggested I get an epipen as a backup. I garden a lot, and have to really watch where I put my hands. I got a wasp sting a couple of years later when I didn’t see a wasp nest in an old birdhouse that I was cleaning out. That time I took the Benadryl and Pepcid AC combo, and it worked out great. Only had to stop my work for a day.