Did I shock myself? Do damage to electrical wiring?
Did you shock yourself? Most likely not. The plastic handle of the scissors, though not rated or approved by any regulatory test lab for cutting live wires, is likely to have protected you. There's also a fair chance that your body wasn't in contact with any grounded conductor, so even if you did come in contact with the live wire, you would not have been shocked.
Electric shock here in the US, at least in my experience, feels like something is vibrating inside of my arm. It's pretty weird. I've experienced it both silently (directly touched a live conductor) and also along with the arc and loud noise you describe (caused a short with a hand-held tool like pliers). The sights and sounds of an arc definitely distract, but I'd say the curious sensation of being shocked would still be noticeable. It leaves me thinking &quot;whoa, I think I just got shocked.&quot;
Did you do damage to the electrical wiring? Again, most likely not. Unexpected short circuits like this are one reason why we have &quot;overcurrent protective devices&quot; aka circuit breakers and fuses. They're also a consideration in the sizing of the wiring and other components in an electrical system: these all need to be heavy enough to withstand the high current needed to trip a circuit breaker.
It sounds like your arc may not even have been enough to trip a breaker.
The most direct way to &quot;tell&quot; for sure that no damage was done would be to visually inspect all the wiring and other devices in the circuit -- it's probably obvious that this sort of check is seldom, if ever, done after a (relatively) minor event like this.

Just for fun: here's a needle-nose pliers I melted when I was 11 years old. I was preparing to install an outlet and knew the circuit was hot (house still under construction; nearly finished and a few circuits were live to provide lighting), so I didn't want to reach into the box and pull the wires out with my bare fingers! So I used these pliers to reach into the box, grab the wires, and pull them out. It looks to me like the ground wire must have laid across the jaw of the pliers and somewhere I must have also brushed the cut but not yet stripped end of the hot wire. I think the circuit breaker tripped for this one..