Mr Johnson is 55 years old and presents to the GP to discuss a brief episode of left arm weakness that occurred 8 days ago. He was sat having dinner and dropped his fork and was unable to lift it again for around ten minutes. He had no other symptoms and is now back to his usual baseline. Past medical history includes irritable bowel syndrome, and he is on no regular medications. Observations and neurological examination today are normal.
What is the most appropriate course of action?