Natural Health: Tongue tingling

I have been to the doctor, dentist, and the dental hospital and tried quite a lot of different medications but nothing worked. The tingling is at its worst at night and in the mornings — has during the day it’s just uncomfortable. Are there any natural remedies that might help?
It is most frustrating when you have an issue such as this, and nobody seems to be able to give you a definitive diagnosis. I can only offer a few suggestions as to a list of likely causes for your tingling tongue, since it is near impossible to make a proper diagnosis without seeing you and taking a detailed history.