My daughter has asthma and severe allergies. She has taken Singul...

My daughter has asthma and severe allergies. She has taken Singulair for almost a year straight now. She has dealt with asthma and allergies all their life. She is sixteen. I had noticed changes in her, but passed it off as teenage drama. This is a child who went from being on the cheer, dance and volley ball team to doing nothing. In the last year, she promises me that she is going to get more involved in school, but always misses sign ups or some one treated her badly so she decided not to take part. She cries at the drop of a hat and has very high mood swings. Twice this year I have picked her up after the school called, because she was having tremors and had elevated heart rate. I took her to the doctor. The doctor started with and ekg, then a 5 hour glucose test. We have never found out what caused these symptoms.