If I'm understanding you correctly, the pain came on suddenly. You have had the fatigue all along.

What blood tests were you given to find the source of the fatigue?
The sudden all over pain can be the advancing of an infection such as Lymes disease. Have you been tested for that or other tick bourne illnesses?

Have you had a stressful event or excessive toxins through dental proceedures? I ask that because my mild FM went wild from Oral surgery and Novacaine.

The doctor saw the pain as making you tired, yet the tired came first geeees.