I have this dull ache in my arms and legs it happens at night and very randomly it's light it doesn't really hurt i just feel something . i do workout?

Get an exam: I would encourage you to visit your physician for a physical exam. It's good that you are exercising and working out, however, studies have shown that people who work out too vigorously can develop a condition called exertional rhabdomyolysis. I do not have your age, medical or surgical history, or medications, there are several components of your chief complaint and history your physician needs.