Kundalini

I am a bit concerned about the effects of kundalini rising. I know very little about kundalini, yet self-knowledge has brought about a recent, radical fundamental shift in my consciousness accompanied with some physical discomfort. I’ve noticed a stiffness in the neck, back aches, and crawling skin particularly in the back, head and hands. Is this normal and are there any dangers? My own research has turned up little and I don’t have much confidence in those sources.