Weird feeling trying to control dream

I''ve experienced this on odd occasions and it still makes me kind of uncomfortable when I think about the feeling but I'll try and explain it the best I can...

From time to time when flying, I find myself passing or getting a little stuck in patches of this fuzzy vibrating static or electric stuff in and around cloud level and it usually forces me to fly back down. The other night I was in a dream flying here and there when I became lucid. I decided to pause my dream and on shouting 'pause', everything in my dream stopped including noise but then this feeling that I get from when I pass through this static stuff slowly came on and got extremely intense and everything slowly started going blured and vibrating really fast causing me to wake up and my heart was beating really fast. I've tried comparing it with something and the only thing I can think of is the series 'Lost'.. :? ..when they move the island and all the sky kind of vibrates and shakes well it was like that. Its a wierd feeling and I've experienced it at this intensity a few times before when trying to do something too big in my dream.

I'm sure its not just a one off thing as I've experienced it before at different intensitys. One idea I came up with is that I'm becoming aware of the electrical activity in my brain. For example I pause the dream but my brain is carrying on firing away so has this effect on my dream and I get this wierd feeling. Its kind of like being electricuted I guess but with no pain??