Frenchman symptoms and conditions

I have been taking Singulair for two years. Initially I noticed problems with sleeping the entire night. I also would wake with a terrible headache and I was irritable and wanting to actually punch the next dude that looked at me sideways ( I have been bodybuilding for 15 years and already have a ton of testosterone) ( I took the meds at bedtime) The last several months on Singulair I noticed a constricting of the throat and a sore throat. blurred vision and an upset stomach that has developed into what I believe is GERD. Since I have stopped the meds It was only 2 days before I became docile in mood, my vision is no longer blurred and my stomach is healing. I have lost 4 Lbs ( I have always weighed myself daily) I sleep the entire night and my throat is no longer constricted. I am sure for some people this medicine would not be a problem, but for me..as the Frenchman said in the movie "Along came Polly".."NO WAY JOSE!"