I'm on my fifth day of taking Sertraline 50mg for what the dr described as 'stress induced anxiety'. I've had the usual side effects - nausea, tiredness. feeling spaced out - but today when I picked DS2 up from school I felt as if my vision was closing in when I spoke to people. It didn't happen when I was driving ( thank god!) but happened again when I got out of the car at home. Is this a side effect of the drug? Or an anxiety symptom?