chronic muscle tension

Hi, I need some help....I have been having major muscle cramps/tension and burning in my extremities, legs arms and neck and shoulder....this has been going on for months (2)...I have had my dr check me for uti....std....hernias....and they are all negative...I have been under a lot of stress and generally am a worrier.....I was wondering if anyone else had these symptoms, and can let me know how severe the pain was for them. Is there any treatment for this? How long can it last? My md thinks its anxiety related. But I feel like my whole body is "buzzing" Thanks for your advice JR

Anxiety, stress etc can cause muscle pain etc.
I get alot of muscle aches and pains in my neck and shoulders.
Have you tried any relaxation tecniques, soaked in a tub?

Anything like that?