I would check with a neurologist on that. It could be part of a migraine or even a small stroke.
The following medical conditions are some of the possible causes of Gum numbness. There are likely to be other possible causes, so ask your doctor about your symptoms.
* Peripheral neuropathy
* Peripheral artery disease (see Artery symptoms)
* Peripheral nerve trauma (see Nerve symptoms)
* Peripheral nerve compression (see Nerve symptoms)
* Compartment syndrome
* Cerebrovascular accident
* Gum injury
* Mouth injury
You would to see your doctor to find out the cause in your case.
Let us know about how you are doing and if you have any other doubts.