What are the symptoms of Riboflavin Transporter Deficiency (RTD) ?

Sadly there are many and each individual case can have further complications in addition to the recognized symptoms below

Facial weakness, or facial palsy
Slurred speech
Vocal cord paralysis
Droopy eyelids
Difficulty swallowing
Visual impairment caused by damage to the optic nerve
Neck and shoulder weakness
Weakness in the arms and legs
Breathing difficulties
Temperature regulation issues
Anomalies in any of the involuntary functions in the body: these are controlled by the autonomic nervous system (part of the nervous system that regulates the organs). They include heart rate, blood pressure, sweating and digestive tract peristalsis (contraction of the muscles that help move food along through the digestive tract), amongst others.