I take 20mg lexapro once daily and take up to 2 klonapin 0.5mg twice a day as needed which I have been taking for a while cAn lexapro cause gastroentris and can wellbutrion cause sezuires Doctor wants me to switch to wellbutrion but I'm scared to after being on lexapro for a long time but I feel it's not working as good as it use too but I just went through slot of family changes and hi stress could that be the reason please help thanks