‘Bifacial weakness and paraesthesias’ is an unusual variant of acute inflammatory demyelinating polyneuropathy (AIDP). Case description: A 31 year old right-handed man presented acutely to SVUH emergency department on 11/1/16 with a one week history of progressive lower back pain. One week prior to presentation, while attending the gym, he dropped a 60 kg weight dumbbell on the back of his neck. Twenty minutes after the injury, he developed paraesthesia of his fingertips and toes, which persisted since. On the morning of his presentation to hospital, he noticed a slight droop on the right side of his face. On detailed neurological examination, subtle loss of proprioception was noted in the left toe and minimal weakness of left ankle dorsiflexion. Over the following days, he developed bilateral lower motor cranial nerve seven palsies. Reflexes remained intact throughout. MRI brain and cervical spine was normal.Nerve Conduction Studies approximately 10 days from symptoms onset demonstrated distal motor slowing in both median nerves and left ulnar nerve, normal sensory studies and motor block in both facial nerves in the preauricular area, consistent with a diagnosis of AIDP. We present a case of ‘bifacial weakness with distal limb paraesthesias’. Our patient’s primary presenting complaint was of severe lumbar spine pain, which can be an early symptom of AIDP, but which provided a significant red herring given his recent neck injury. Blink reflexes can be a key diagnostic test in the investigation of acute inflammatory demyelinating polyneuropathy.