Nasonex and insomnia

I've used Nasonex for the past several years and it has worked effectively to help with sinus decongestion. But recently, I've had trouble sleeping through the night, usually waking around 3:00 am and having difficulty falling back asleep. I'm going to discontinue usage and see if that has any effect in my sleeping pattern.

I used nasonex for a month feb 2006 and experienced terrible insomnia and palpatations at night and i also had optic neuritis in my left eye. Is the ON to do with tiredness from not sleeping. All stopped once nasonex stopped. Taken beconase since, however i have had a sinus infection and optic neuritis again april 2007. Is there a relationship between corticosteroids and optic neurits?