Sertraline can cause anxiety, restlessness, nausea, excessive sweating, amnesia (loss of memory) and aggression as its common side effects. Loss of memory is a very common side effect of sertraline. You have been taking sertraline, so you must be struggling with depression. You can shift to escitalopram which has better safety profile. But escitalopram is a prescription based medicine and you have to contact your psychiatrist for written prescription. Advice 1. Escitalopram in the morning 2. Clonazepam at bed time for 1 month 3. Start workout in gym at least half an hour in a day for 5 days in a week 4. Do meditation 5. Avoid smoking, coffee, and alcohol I hope this information will help you. I will be happy if you ask another question Thanks