Trichotillimania symptoms and conditions

My daughter, who is eleven, now, was on singulair for about 5 years. She has been having a number of problems for a while now, but we never thought about it being the singulair until recently. She was having anxiety problems, tremors, being very argumentative, irritable, angry, depressed, pulling her hair out, (trichotillomania). I started doing research on her meds. (Zyrtec & Singulair) and was shocked to find so many other people were having these same symptoms, including several with the hair pulling. I took her to her allergy doctor and just told him I wanted to change her meds. and that I didn't care if they say these are "not" side effects. It was worth trying to see if things would get better. Well, she has been off the Singulair for about a month and half, and I am happy to report her hair is growing back, and she says she feels happy again. It breaks my heart to know that medicine that we had been giving her for so long was doing this to her. I also have decided a few days ago to take her off the Zyrtec after reading a lot of the same symptoms for it on this website.