Occasionally, maybe 5 or 6 times a year, maybe more, just below left side of lower lip feels numb. All the way down to my chin. This sometimes spreads around my mouth only on left side. Then my lips start to tingle. The whole thing usually lasts 20-30 minutes but the initial numbness on lower left side of lip and chin lingers on and off sometimes for a day or two. What do you think is happening?
Thanks for your query, I have gone through your query. The numbness of the mouth and lip and chin could be because of the nerve injury by trauma or pressure on the nerve by a cyst, tumor or impacted tooth. Consult an oral physician and get it evaluated. You need to take a radiograph to see whether any impacted tooth applying pressure or any cyst or tumor applying pressure. If there is any pathology, then get it treated. Meanwhile, you can take a nerve regenerating Chat Doctor.  If the condition does not improve, then consult a neurophysician. I hope my answer will help you, take care.