[matt f]

Originally Posted by pavulon

That's true.

However, having experienced the same odd thing the OP discussed, I found an article similar to the below. In my case, it seems psychosomatic even though I'm not really into cellphones. Certainly, legitimate problems could cause the sensation but the odds are markedly in the OP's favor.

The Phone That Wasn't There: 11 Things You Need to Know About Phantom Vibrations - Robinson Meyer - The Atlantic

Good article.
Thank you for the link.
Another possibility for r/o.

If the vibratory sensation is intermittent, not reproducible and fleeting this is an option.
If, however, the sensation is somewhat constant, or reproducible it would be advisable to look deeper.

Thank you again for the link, it never hurts to learn something new.