my son has all the symptoms that people have discussed and i woul...

my son has all the symptoms that people have discussed and i would not have found it if he had not hit his head and started to have weird symptoms and after ruling everything out realized that he had been off singular for a month this summer and had started back up. He has had a lot of symptoms but I always thought it was something else. Like everyone said everyone felt that singulair wasn't a problem. I remember when he was little he was having night terrors and the doctor switched it to the day time which made it better but he has always had a hard time sleeping since he started. he has been off it for four days how long does it take before the thoughts come back to normal. If someone could answer it would be great. i am so upset right now as I am sure the other parents are that our children had to go through this.