I can't give you much advice I'm afraid as I'm new to all this myself. However I had a not so dissimilar experience the other night after reading about WILD technique. I actually did Tarthang Tulkus meditation, visualizing a lotus flow with a flame at it's center in my throat, and then try to remain conscious as I drifted into sleep paralysis. This worked but I also had a bumpy ride as I then felt I couldn't breath, and then saw myself (my chest) struggling for breath and then saw myself sat on the edge of my bed again struggling for breath. At this point I started to panic so wanted to wake up. I'm very interested in this technique as my current dream world seems quite remote and despite the weirdness of my dreams I have no inkling that I'm dreaming.. having said that I've only been trying to develop this skill for a little while.