The term "Taser" is being mis-used to the point it is in danger if becoming a generic. I suspect you were hit by a non-taser stun gun, not a Taser in drive stun mode (which has severe limitations compared to "shoot the wires" mode).
Yes, I'm sure it wasn't a Taser brand stun gun and it wasn't used in a "shoot the wires" mode. So the actual amount of shock given was only a tiny fraction of what it would be from a police Taser.