You have Ptsd. Your past, graciously gave that to you. You went through a lot of physical, and physiological abuse growing up. This had taken a toil on your ability to be okay with physical touch

You and Simon are in bed sleeping, his arms are wrapped around you gently. He feels you squirm in your sleep and he is quick to wake up. He isn't fully awake but he is aware of what's happening. He feels you squirming in his arms, making quiet groaning noises. It seemed to him like you were in distress