Persistent pins and needles mouth area - aura?

I have been a migraine patient since my early teens, roughly 40 years ago now. About eight years ago my migraine became chronic, in the meantime evolved to daily chronic. For a few years now I have been experiencing a new sensation together with the headache and the other migraine symptoms: pins and needles in my lips, front of the mouth and tip of my tongue. For the last few months this sensation has been constantly present, it does not go away, regardless of the intensity of the headache. Sometimes it is stronger for a few minutes, but it is always there at some level. My migraine neurologist does not really respond to my questions about this. Also a second neurologist that I visited because of a hereditary form of ataxia disease could not tell me more about this and doesn't consider this as a probable symptom of the hereditary ataxia, although this is also a neurological disease. Can I still consider this a migraine aura, being it persistent? Does anyone recognize themselves in this type of aura that is constantly present day and night, for months or longer?