I started Singulair in Jan this year.....breathing got much easie...

I started Singulair in Jan this year.....breathing got much easier but started gaining weight with no changes in eating habits or activity levels....tons of tummy problems...quit taking it in May...starting having to rely more on my rescue inhalator more than recommended so I went back on. Now I'm having paranormal experiences....some psychotic episodes....compulsive obsessive behaviors...major off the wall dreams that continue after I wake up and go back to sleep. All in all I wonder which is worse....not getting a good deep breath or having to live in misery to be able to breathe....Thanks for letting me vent. There must be some other solution.