"i used prozac in the past for 3-9 months twice and had no side effects apart from some headache for a few weeks. now i have been on it again for 3 weeks and this time i am suffering severe side effects. physical ones include heavy fogginess/head pressure, sleeplessness, muscle tension, blurred vision and loss of appetite and weight loss. mentally i have also worsened. anxiety is really high, especially in the mornings, feelings of hopelessness an inability to cope with life, suicidal thoughts (that i never really had before), inability to focus/read and feel motivated. now at 3 weeks i have some moments in the afternoon of feeling calmer but it is rather unpleasant numbness. i hope it improves going forward, but it has been very tough."