hi, thank-you for providing the brief history of you. A thorough clinical examination is advised. As you have fibromyalgia, arthritis etc you need to focus on three major activities. Meditation Breathing exercises Physical therapy with meditation you will be able to fight against the anxiety and depression. with breathing exercises you will have a relaxation of the body, also it will help improve the blood carrying oxygen cells more which will inturn help reduce the pain and improve your metabolism & endurance physical therapy will help reduce pain with Therapeutic ultrasound therapy and TENS therapy. Also exercises are a must to remove the excess lactic acid formed at the end of the activity called the glycolysis cycle. Taking an anti depressants pill will lead to a complication of back ache, muscle and joint aches schedule too. Dealing something with a nature way has always helped my patients in clinical practice. Regards Jay Indravadan Patel