i have copd from smoking , i quit months ago , i was getting somewhat better , but recently i have gotten alot worse , sometimes i have a hard job just getting a breath of air , i had x-rays , lots of blood work , my doctor says i have no cancer , i am on ventolin , antrovent and advair .... this was fine until a few weeks ago , things have gotten worse , a couple nights ago , my feet swelled up , and i am using the bathroom alot more than usual . right now , i can hardly walk to my car without getting very winded , its getting scary for me ..... any suggestions that could help .