I've been on sertraline for 5 weeks now I started 2 weeks at 25 mg then bumped up to 50 mg (so now 3 weeks on 50mg) I'm having terrible insomnia where I can't get to sleep with out a sleeping pill which really sucks other than the insomnia I do feel I'm getting better so I just would like to know how long does it take for the insomnia to go away