I'm taking part in a government study on quitting smoking and they provided a phone number for the local cancer society. Called them and they said that this was rather normal, but if it persists for weeks, then have it checked out. She said that we're used to taking deep breaths in the smoking process and my body is adjusting - could be a sign that my lungs are healing. My gut feeling was not to be alarmed about this, but thanks again for the post, and the word of caution.
Gary