Vibration

Hello all,
I've posted about this before but as the posts have all gone now thought I'd bring it back... What I'm wondering is - has anyone out there experienced feeling a constant sensation of vibration at their core, so to speak, from base of spine to solar plexus/chest area? I've had this for a year now, it came at first with a lot of heat in feet/legs/base of spine but now it's just the vibes and it can be quite strong. Have read a fair bit on Kundalini as I think it's something to do with this...but in my searches haven't come across anyone else who's said oh yes I've had this vibration thing too.... so...I'm curious. Would love to hear of anyone with similar experiences.
Cheers,
Mousex