I seem to be ill every 3 months and cannot function. This lasts for 3 months and I am struggling to cope . Its like a switch in my head has anyone else had similar experience? I really don't know what to do. On sertraline and quietipine at the moment and been through mental health team a couple of times when I finally get an appointment! They dont think I'm bipolar but no one seems to be able to explain this cycle or what it is. Depression and anxiety I suppose and have tried lots of antidepressants over the years but cant seem to stay well for long on any of them.