Maybe you need something to drink because you have cotton mouth.
Why Does My Esophagus And Tonge Feel Dry?
Maybe your esophagus and tongue is dry because you are dehydrated. Or if you have a piercing in your mouth, it may be infected.
There are also several medical conditions that can cause dry mouth and dry esophagus. Sjogren's syndrome and fungus infections are just a couple. It might be helpful to do an online search to discover if you have other symptoms that you don't realize could be related, i.e. Dry eyes, digestive problems, etc. You should discuss this with your doctor.