nervous laughter? Something I have noticed with my laughter is that it sounds more genuine, I laugh from the bottom of my belly, this baby natural laugh. Before I laughed pretty much from my chest, not from the belly and it made it sound a bit like chuck-chuck. Haha. But thats great. Your symptoms arent severe at all, if I gave you a list of the symptoms I had before my streak you would have nightmares. Add to that I went to every doctor I could and none could detect any physical problem with me.