Anxity Neurosis or? Symptoms and guide!

Hello Doctor, Since last 6 months i am having frequent Muscle pain in my body specially left side (hand, arm, biceps, chest, leg) The muscle pain comes and goes. Sometimes chest fullness, sometimes neck pain. This causes irritation and fear for life. This also increases stress and affects day to day life. Loss of focus on work and personal life. It becomes difficult to pursue any hobby as well since these signals from body keep my mind anxious. I tried couple of Psychiatrist and Cardio and Neurologist to diagnosis the actual cause. However nothing could fix these problems. I am also skeptical on using medication from Psychiatrist as i feel i will get addicted. Kindly help to understand these symptoms and guide Thanks