Singulair and sweats

My son is 11 years old and been on Singulair since around 2003. My mother called me and told me that she saw something about the drug on the news. As of today, I have called his Dr. and stopped the drug. He has changed over the years and I never thought it would be Singulair. Reading the stories, now it all makes sense. He always complains with his stomach and had even been to the ER with it before with no explanation from the Dr.s why he had stomach pain (rolling over pain) for a week and his blood pressure was over 150/80. It seems to get worse over time, he is having trouble staying focused in school and breaks out in sweats for not reason at all. Thanks for posting your stories.