What is the special cell in your skin that allows us to sense pressure heat cold and pain called?

The cell names your looking for are called gametes. However, they do not define the stimulation into either pleasure or pain. At least not directly.

Your central nervous system is very primal. It can only communicate in terms of sensations. When your body is stimulated in some manner, a process called transduction occurs and the stimulation is converted into one or more of these 5 basic types of sensations.

These are: Heat, Cold, Pressure, Tickle, and Itch.

This may surprise you, as you have personally felt both pain and pleasure in the past. You say to nobody in particular, "I can feel that I hurt, what part of my body needs attention?"

After all, our concepts of pain and pleasure have kept every human alive and reproducing for many years past, it would be unnatural not to hear pain as a message from your physical body as if to say: "Whatever is happening to that body part over there? followed by the label of pain or pleasure Please make it stop!

Or maybe on the other end of the spectrum please more...) - as the case may be.

You see, when you understand this one fact about your central nervous system, you quickly realize that our brain takes various combinations of these 5 sensations in differing amounts and creating the concepts we call pleasure and pain.

If you teach yourself to properly identify the individual sensations when you receive them you gain an uncanny ability to ignore minor "pain" and with effort and practice, you can significantly lessen even more intensive or persistent pain.

Try to train yourself to think differently, rather than taking the shortcut next time and labeling those sensations a headache, consider saying to yourself something like this: "I am feeling significant increase in pressure in my head. I need to slow down, check my nutrition level, and consider some medication."

While your getting your pills, focus on steady and regulated breathing while focusing on the actual problem your body is presenting to you. You can cure things you understand with relative ease.