... even saiva, or taking deep breaths. It's also caused me to be short breathed, it hurts to lay on my stomach, trying to breathe. It comes on harder sharp pains while standing up from sitting, or just randomly while standing. When i swallow the pain starts in my throat, and goes to the sternum. It doesnt feel like heartburn to me, and has been constant for a little over 24hrs. As well, it seems any liquids i swallow feel thicker than usual. What do you think