Is this an internal or external vibration?

internal.

I don't think that it's very serious, but the next time you go in for your annual exam (once a year for a PAP smear), I'd suggest that you mention it to your gynecologist.

Just wanted to say that I've had the same sensation recently... (It took me a while to realize it wasn't my cell phone in my bag). I'm in my late 20s, and not pregnant either. Maybe I'm not crazy if at least one other person has experienced this. Did you ever figure it out? Thanks!

That's crazy! Good thing that you figured it out. It totally makes sense.

Im 46,Two kids, 21 and 15, and have experienced this sensation just this last month. Not painful at all, but just kind of curiously annoying. And it is only on my right side. I would love to know the cause. If I knew it would stop annoying me so.

its probably from ovulation

I'm pretty sure Ive had the same sensation that your speaking about. Its kinda like a tingling feeling. It doesn't last long, but I feel it when I go to use the bathroom and most of the time my eyes will water. It doesn't hurt, in all actuality it feels kinda good, in a weird way.

I am getting it too and it is really starting to annoy me now!!

Sounds like gas...LOL

OMG, i have just been experiencing this too. And i too had to check my pocket to make sure that my phone was in there on vibrate. It happens to me ever 5 seconds and only lasts a second. But quite annoying. If something is going to vibrate, I at least wanted it to satisfy me. LOL .. this is just annoying.