Singulair and single mother

My daughter had been on singulair from the time she was 8 yrs old until she was 14. This will sound as if I am a horrible mother but I just thought that she was a raging bitch. Without my knowledge, she stopped taking her Singulair for a few months and she became a different person. She was so sweet and loving. One night she came in my room having an asthma attack and I asked her if she was taking her meds, she admitted that she had stopped taking her singulair and I got on to her and immediately got her prescription refilled. Within a few days of taking the singulair she turned into a raging, screaming emotional wreck, a TOTALLY different person. I feel so bad that for 6 years of her life I put her on medicine that caused her to have screaming, uncontrollable tantrums, and severe mood swings that caused her to be miserable. It does seem to be the only thing that effectively controls her asthma symptoms but the emotional havoc that is causes her and the people around her is not worth the benefits. We have an appt. with her doctor to see what other options we have.

I have a seven year old Daughter that has been on singular for 6 years. The first 3 years she only took it occasionally but the last 3 years she as taken it every day. Also in the last 3 years she has had trouble sleeping all the way through the night she would wake up because of night mares and was afraid of sleeping alone and having mood swings that you would not believe she would go into rages that would leave me in tears because of not being able to help her and after about a year of that i took her to a Psychologist she was given a sleeping pill and was tested for learning disabilities. when they test a child they also ask the parent and the teacher a lot of questions about different situations the results of that test made it sound as if all of this behaviorally problems with my daughter was my fault be cause i did not have a good support family i think that was because i am a single mother but they also said there was nothing essentially wrong with my daughter. all of the things that i have read tonight sound just like the problems that i have had with my daughter and my daughter will not be taking Singular i know that they say that we should not be stopping the medication without talking to our doctor but if singular is the reason my daughter is acting this way then i can handle a runny nose better than a scratching bighting hitting whirlwind that she becomes in her rages