I lost my bottle of Prozac. It took a week for them to process me to get new ones. As of last night my withdrawing symptoms got bad. I was confused so bad i had no idea how i got places and i was forgetting things i did.i had a panic attack. And power puked all night. I just got my prescription today and feel a lot better. But im still nauseous, have a headache , and feel very irritated. I was wondering how long the withdrawal symptoms will last.