Can excessive swallowing cause a feeling of post nasal drip?

Maybe...: Excessive swalling could cause a feeling of post nasal drip, but vice versa could occur as well. Also, if someone were to have a history of panic or anxiety, that could increase the feeling, as do some meds if they change salivation or eating habits. This is a behavior that is most certainly amenable to cbt, however, and would decrease swallowing air and belching.