I kept getting woken up last night due to painful stomach spasms, something I have never had before. Could it be the albuterol? I'm on my third day and really puzzled. I don't know if I expect too much, I still don't have the 'depth' of breath I did before! I asked if I could use it at bedtime to help me sleep through, and was told not to take it that late...I am confused!