I've been doing Kundalini-yoga for a while and opening chakras, and as a result, I get also sometimes energy movement like that also. And my connection with spirits has started to open. I give you a link you might want to visit : http://www.kundaliniyoga.org
There's lot of information which makes sense to me and it works for me, but as we all are different individuals, I can not say that this is working for you. However if you are interested in about Kundalini, make a visit. Of course, this is only my humble opinion...