My dr prescribed me antidepressants for anxiety and depression due to stress for 4 days. but i am afraid of side effects, what should i do?

Return to Dr.: Tell your Dr about your fears. Either you'll be reassured or you can ask for a referral to a psychologist w/out medication to see if that strategy can be sufficient. It often can. I do it all the time since I can't prescribe and often find it's not necessary. Indeed, if it is only a short term need, I'd expect that you can do it that way but if it's an immediate thing there may be a wait list.