I am very concerned... great difficulty breathing when I get up from seated position... activities are hard to perform, if at all... sometimes, can not walk but a few feet... maybe 5 to 8 feet distance... exacerbation is so full fledged when I go to paratransit van, driver sometimes has to assist me to the van(20 feet)... can't do chores, Am not lazy, just can not do anything physical..Take advair, 2x; ventolin prn; combivent prn; nebulizer prn; produce extreme phlegm>extreme shortness of breath>okay if seated, but when I get up... have to practice breathing for about 7 to 20 minutes... oxygen level is 2liters... sometimes, I put it at 2.5 liters... so sad not to be able to do things about the house> shopping is hard, ask for store helper, sometimes, just don't have the energy to pick up the products, nor to put on the counter... any suggestions?