First signs?

[example6]

I've only been meditating for a few weeks, listening to binaural beats from I-Doser and The Monroe Insitute. Twice I have had this very strange sensation, only after having completely relaxed my body. My fingers start to feel an enormous pressure (I have no idea what this could be) as if they were being clenched while relaxed. Also, there's this sort of feeling in my head that comes in surges. It's a disorienting feeling and when I focus on it I sort of feel like I'm getting sucked into my head and spinning. I've managed to focus on it and get this strange sensation twice, and both times are when I am kept from falling asleep by the effects of caffeine. Could it be the first signs of astral projection (vibrations, etc...) or might it be some strange side effects from caffiene?

[CFTraveler]

It depends on how long you've been using the bbs when you feel this.  It it's early in the trance, chances are it's random muscle tightening/twitches caused by the binaural beats (some frequencies do this to me, the ones that are more on the beta range).  If it's later in the trance, it could be symptoms of energy body loosening, not necessarily vibes per se, unless you're indeed clicking out.  In that case, get a little deeper in the trance and try an exit technique or noticing, depending on what kind of projection you're trying to achieve.

[example6]

The sensations in my fingers happen about halfway through the sound file.

But the strange feeling in my head happens farther in the latter half of it. And it's the 2nd time it has happened.

Thanks, I will definitely keep trying. I'm not sure what "exit techniques" are though, but I'll look them up.