Hi . It's always a good idea for someone who has COPD, or any lung condition, to see a pulmonologist. Can you get a referral? If the ache worsens or makes you more nervous for any reason, I hope you'll consider a visit to the ER. At the ER, they can run more tests immediatley to determine what's going on. Keep us updated, if you don't mind. I'd like to know how you're doing. Best wishes. - Lori (Team Member)