Not sure if this is heartburn or not. I feel like I have gas trapped in my chest. I cannot nor have never been able to burb like normal people. After being on Allegra for the past week I all of a sudden feel like I have gas trapped. I hear it moving and when it does I feel better. I have had the feeling of clearing my throat alot too. I'm wondering if this is reflux or what? If this isn't gone by Mon. making appt with GI Dr. I hate this feeling. It feels like I want to stick my finger down my throat to get out all this air!