Transient aphasia is another symptom of migraine with aura that proves what the migraine community has been saying for years - Migraine is not just a bad headache. It is a neurological condition that affects many body systems. Including communication through written and spoken language. Transient aphasia is a neurological symptom that interferes with the ability to speak, write, read or even understand language. The inability to communicate can be a significant problem, especially if in the middle of a medical crisis such as stroke, head injury or migraine attack.