Physically oversensitive parts

Today, I would like to ask if anyone shares my experience of having parts who are overly sensitive to what you physically perceive.

I myself have a bad body perception due to autism and trauma. It might be that this is why I have some overly sensitive parts; maybe they hold all of my ability to perceive in themselves and it's just too much. I don't know. But I have a part who is extremely pain sensitive and another who just reacts negatively to any perception. The latter will literally suffer from a handshake, a twig brushing my skin while hiking or the water being a little too warm. I'm not sure why. He doesn't really make me act though, he will just be in the back of my head complaining about everything physical. The other part, though, will from time to time cause me to feel and act extremely distressed when something hurts. I might randomly start crying or screaming when stubbing a toe. Today I accidentally cut my finger when making food. It was not a deep wound or something and barely bled at all, and when I listened closer to myself it barely even hurt. But my first reaction was literally bursting into tears.

Does anyone share that? Do you know about reasons, or do you have a vague idea? How do you act about that? Are there things that have helped?