I have had several bouts with bronchitis in the past two years, along with having asthma. My doctor recently put me on Singular, and said there were no side effects! I have worken up the past two nights with such severe leg cramping that it has ruined my sleep (which wasn't great to start with). I am going to go off it and see how I feel. During my most recent bout with bronchitis I completely lost my sense of tast and smell, it is now almost 3 weeks and I am so depressed. Anyone else have this problem?