I've been noticing a strange sensation whenever I take a deep breath, like something's moving in my windpipe. I've checked multiple times and even had an X-ray, which didn't show anythingjust air. I do deal with a lot of gas in my bowels. Could it be gas moving in my windpipe, or is it something else? There's no mucus or phlegm coming out, so Im not sure whats going on. Any thoughts?