What’s normal is that you had a traumatic experience, then internalized a Survival Rule to avoid repeating the behavior that led to the trauma. Depending on your age when the original incident happened, the Survival Rule might sit very deep, causing you to follow it even without thinking and without knowing why.

All that is normal: expected, sensible, reasonable.

The rule itself might no longer be needed. Can you imagine a situation in which it would be perfectly fine to interpret as a joke something that someone says without specifying it as a joke? Can you imagine three? Ten?