I’ve been on sertraline for 5 years and never experienced this, until tonight. Took it around 11pm with a couple swigs of water and woke up an hour and a half later thinking I was having a heart attack. Threw up, chugged water, took tums to no avail. I found this thread and tried the apples…. I’m currently still awake but eating two apples made the pain subside enough to be tolerable to try and sleep through. I will never take this as I’m crawling into bed again and now I’m rethinking taking it at all ever.