I am sorry to hear about your medical problems. The symptoms could be due to flu shot. It may have triggered the fibromyalgia. Take vitamin B supplements, eat healthy, drink water and exercise. Please discuss with your neurologist when you meet him. Take care!
The medical advice given should not be considered a substitute for medical care provided by a doctor who can examine you. The advice may not be completely correct for you as the doctor cannot examine you and does not know your complete medical history. Hence this reply to your post should only be considered as a guiding line and you must consult your doctor at the earliest for your medical problem.