sudden muscle pain in my neck

Sometimes when I stretch, or try to do any movement with my arms or neck, I experience muscle cramps, especially in my neck (lasts about 30 second and it hurts a lot).

It feels like I've injured my neck by doing something physically wrong, but I haven't done anything really wrong.

What do you think this is? Is it within the scope of peripheral neuropathy, or is it an electrolyte deficiency?