I have severe COPD, but cope with it for most essential activities. Recently the shortness of breath has become more onerous and it seems to have coincided with my recent inclusion of pineapple in my diet daily or even more than once daily. My oxygen saturations are fine when sitting, but drop like a stone into the low 80's when I get up and walk around to do things. I also have noticed some slight light headedness occurring through this same period of when I started the pineapple inclusion. I am female and 76 with no other diseases or ailments of note. I use Albuterol inhaler three times a day (2 puffs each) and Advair 250/50 twice a day. My chest feels heavy with a lot of mucus I don't usually have.

What would you advise?