Have been taking Singulair but not consistently. I am a middle ag...

Have been taking Singulair but not consistently. I am a middle aged overweight male, and the MD suggested that conventional antihistamines could have cardiac complications. Tried taking singulair at night per instructions but found it interfered with sleep. Recently moved to taking it in the daytime and found it prevented me from staying awake. A couple of near-accidents while driving. Mood swings, apathy and hostility, and even a trace of paranoia. Greatly reduced intellectual capacity, a very bad thing for me as a computer programming professional. Stopped taking it a week ago and I am almost back to myself. Hope and believe I escaped long term damage. I suppose I could be an outliers but I'm basically wired pretty well and I tend to doubt it. My impression is that this drug has such severe neurological effects that it should only be prescribed, if ever, in case of extreme need. I'll take the sniffles, thanks. Singulair made me lazy, mean and stupid. Not a good trade at all. The idea that this stuff is being foisted on inarticulate young children horrifies me. Even as an adult it is hard to make the connection. One doesn't anticipate severe psychotropic effects from something that replaces over the counter allergy meds. I hope I'm an outliers but I think this needs some investigation. Suicide is awful, of course, but if its incidence goes up a little, perhaps a lot of minds are being disrupted short of suicide. If so this is a catastrophe and a travesty.