Certainly sounds like a TIA and ordinarily I would suggest that you go to A&E.
However over the years you have had cerebrovascular episodes and investigations for such with established underlying diabetes and auricular fibrillation. You are on anticoagulants and as such I would have thought another stroke iikely. If it were me, I would monitor the situation for the next few weeks. You may not suffer another TIA, ut if there were further devopments, then that would be the time to seek medical help.