What Causes A Pinching Sensation When Having High Body Temperature?

Hi, im a male 20 years old, its several months that when its hot or when i feel uncomfortable and my body s temperature rises i feel like this pinching sensation, like if somebody was poking me with needles in my upper body, like my arms, my back ,neck and chest, if i sweat a lot then the pain almost goes away but its a long time that i have it and it makes me uncomfortable and it prevents me from doing lots of things in my every day life.