I started taking singulair about one week ago and I started not s...

I started taking singulair about one week ago and I started not sleeping well , waking up at 4 or 5 am focusing on stupid things like what I had forgotten to buy at the grocery store. I first thought I was pregnant since I suffered major insomnia during my first pregnancy, took a pregnancy test and after seeing the negative results started asking myself what could cause that, that is when I realized I started Singulair about a week ago. I will stop it today and see if I sleep better. I am allergic to dust mites and dust, it is pretty bad sometimes and it will give me asthma. I was using an inhaler before (Alvesco a couple times a week) and did not experience any insomnia. The doctor told me Singulair was very similar but it would also take care of my sinuses. It works really well for the sinuses and the asthma, but I rather have a stuffy nose, no asthma and sleep well. I am very surprised to see that some of you have been using that drug for so long after having so many side effects... and with children too...it is really scary