I have been so worried about my 8 yr. old daughter for the last f...

I have been so worried about my 8 yr. old daughter for the last few weeks. She takes Singulair for asthma/allergies and she has become a different person recently...She has been abnormally worried about being forgotten at school, karate, and even church. (She has never been forgotten anywhere!). She cries at the drop of a hat and is unusually nervous about things. I was really concerned about it to the point that I was about to take her to her pediatrician and then last night I saw the information on the news, so I have stopped the meds for now, but I don't know what to do to treat her asthma. She has not had an attack in almost a year and I don't want it to start back up again. We only take the Singulair during her bad seasons (spring and fall)...Have put in a call to the Ped. to get an answer...