Does anyone gag because your throat is dry?

Hi. I am having issues at night with my throat feeling like it’s rubbing together. It makes me gag, which is new. There’s a feeling like phlegm is in the back of my throat but, it’s not. The little saliva I have becomes bubbles towards the end of the day. My mouth feels like I haven’t drank anything 20 minutes after I have. I’ve tried swishing with coconut oil to help but, the effect was short lived. Throat still feels like it’s rubbing together. Anyone else gagging when trying to swallow?