The intent of my questions about seafood was based on the implied rapid onset of the symptoms after your meal, which implies an allergic reaction (perhaps to sulfites in the wine, or scombroid food poisoning, which is an occasional reaction to seafood). However, without other symptoms (edema, swelling), allergy is a less likely culprit.
The confinement of your numbness to the distribution of a particular sensory nerve (in this case, the maxillary branch of the trigeminal nerve) suggests a peripheral neuropathy. This can arise from mechanical compression-- for example, from an upper left tooth or an inflammation in your left maxillary sinus-- or due to some other neuropathy, due to inflammation or viral infection
. For example, facial numbness may be a prodrome to Bell's palsy, or to recurrent herpes simplex or zoster-varicella virus infections. However, Bell's palsy is usually accompanied by facial muscle weakness, and the herpes simplex or zoster varicella eventually manifests with visible blistering of the skin on the affected areas; lacking these signs, they become less likely suspects.
Therefore, your best strategy would be to consult with either your dentist or an ENT specialist to assess you for either chronic sub-clinical dental
infection or sinus disease. I would probably give precedence to seeing the ENT specialist, especially if there are few teeth in the vicinity on the upper left side. It is important to do a complete examination, if only to rule out the more remote but serious possibility of malignancy, because some lesions (particularly salivary gland tumors) tend to affect the sensory nerves in this way. If neither consultation detects abnormality, a reasonable next step might be to see a neurologist to assess for neurological disorder.
Hope this helps...