Repetitive motion injury symptoms and conditions

ive taken advair for 3 years,ive had a few side effects including: weight gain, pains in my leg, and tiredness. i dont know if these are from the advair or not. i never had these issues before taking it. i really dont know what to do. if im not on advair i have a hard time breathing and have chest pains. Does breathing better out weigh the side effects that it causes??? i have problems with inflamation and advair seems to work well with that aspect. Is there natural alternatives? HELP!!!