Welcome aboard Richard, glad to have you along on this journey. I was 64 when I quit and it has been almost a year and a half of no smoking. Yes it is a bit tough at the beginning and you are having some of the same symptoms that I (we all) have had. The good news is that it does get better, not overnight, but it does get better. Come here often to post, read, and educate yourself -- there is a lot of good information and whole bunch of good people that can help you with this. Also go to the daily "NOPE" pledge forum and pledge NOPE daily, it may seem corny but it really helped me and continues to so. Anyway try drinking cold fluids and deep breathing techniques. This can be done and congrats you are almost three weeks into your quit -- that is a major accomplishment!!!!