Myasthenia gravis is an autoimmune disorder causing skeletal muscle weakness, most commonly in the eyes, bulbar muscles,
limbs, and respiratory muscles. Whilst it usually presents with ocular symptoms or dysarthria, dysphagia and fatigable chewing,
our patient presented with difficulty in breathing, needing oxygen to maintain normal oxygen saturation. This case illustrates
importance of considering uncommon causes for common presentations, when it does not fit in with the diagnosis.