Are you using an US two-prong charger or any ungrounded power adapter really? If so, the tingling sensation is because you’re acting as the ground, conducting away any extra current.

It happens with MacBooks too, or pretty much any metal device plugged in but not connected to the ground.

If every part of the circuit is tested and approved to your country’s electrical standards then it should be fine but your best bet is to switch to a grounded connection.

This is just my best-guess answer. If ever in doubt about anything electricity related, speak to a trained electrician.