I just took my birth control pill, omeprazole for acid reflux, and my Zoloft. I've been doing that every night for about a month. But tonight right after I took it, I did lay down, and suddenly felt that feeling in my chest that a pill was stuck there. I've tried eating and drinking and sitting upright. It feels like I just need to burp but can't. (It's been about an hour) What should I do?