Odd sense of jaw pulling back , then cannot speak for a couple of minutes. confusion after but no amnesia for event. complex partial seizure ?

?seizure: What you describe can be a manifestation of a partial seizure. I would contact your prescribing doctor who may want to adjust your medication.

Could be: You may well be experiencing a focal event, which does not more fully generalize due to your lamotrigine, but have the levels checked, as the dose may require a titration. If in high therapy range, might wonder about a second medication. This involves "art of medicine", and one of those situations where your neurologist's intuition is important.