Electric feeling

You can use a device like this to perform a quick check of the wiring of the electrical outlet (this only detects some possible wiring issues). If it shows anything, but "OK" or "Correct", then you will need to have an electrician fix the home wiring.

https://www.kleintools.com/catalog/electrical-testers/receptacle-tester

If you are using a power/surge strip or UPS, then try connecting the laptop directly to the wall outlet. Make sure to disconnect all external devices in case one of them is causing a problem. Also make sure all external devices connected to the laptop are also plugged into the same electrical circuit which is best done by using a power/surge strip.

FYI, here is the grounded AC Power Extension Cord from the Apple Store for the US region. Change the region to your location where you can find the appropriate AC cord for your region.

Power Adapter Extension Cable - Apple

It is not normal to feel electric shocks when using a Mac.

Make sure the wall outlet is properly grounded. Use a grounded power cord. Test in other buildings. Have the computer examined by an authorized service center.