Have just started a course of Sertraline for PND, mainly characterised by insomnia. Since taking the pills 4 days ago, my insomnia has got worse! I know this is a common side effect of Sertraline and my GP has advised me to continue for 2 weeks with the medication, until I see some improvement, but I'm not sure I can carry on until then. Can anyone share any experiences/advice? Many thanks.