BTW, you were shocked, not electrocuted.
Agreed - you type very well for a dead person.
This is likely the result of faulty wiring or something done very wrong in one of your pieces of gear. Although it can happen anywhere, living in China, there's a good chance your place is poorly wired; adding clone pedals to the mix isn't a help, either. Don't buy a multimeter - find someone who knows what they are doing with one.
This is not something to try to troubleshoot over the internet. If your appendix burst, would you try to fix it by logging on to a forum? This has potential consequences that are just as bad as that - don't ask us, find someone who can troubleshoot the thing in person.