Phobia

You develop a debilitating fear of something in the situation from which you gained your injury. For example, if you were damaged by a mind flayer, you might have a fear of octopuses. The DM will decide. When you are confronted with your phobia, you have disadvantage on all ability checks and saving throws. Magical healing of 6th level or higher can cure your phobia. Alternatively, the injury heals on its own after 21 days.