I don't know if it's related for me or not, but I am highly sensitive with every sense...bright lights give me headaches, I never quite feel like I've adjusted to them and can't stop squinting even when people around me can see just fine. I typically keep my computer screen very dark or else my eyes feel strained, other people look at my screen and complain they can't see anything. I'm extremely sound sensitive, loud noises are physically painful. I am pain sensitive, a sudden sharp pain, even if it's objectively a mild bump, will take my breath away. I never thought any of this could be related to Crohn's but it sounds like a common symptom...something to think about I suppose.