Re: resp to Kokyu Rokyu thread
I would certainly agree with blood pressure => strokes as something to be wary of at least. I can't be alone in having given myself headaches through overdoing simple things like pushups?
Re kundalini, that's a rather different beast - there are plenty of other things to be aware of and quite a few people have reported a very rough ride at times. Keep tongue up, keep drinking lots of water, and keep thinking positive thoughts!