Fibromyalgia Symptoms HOME. Home âº Fibromyalgia Medication âº Gabapentin For Fibro. Fibromyalgia sufferers deal with myriad symptoms, not the least of which is pain. It is a chronic disorder that is characterized by ongoing widespread muscle pain and tenderness, and is usually accompanied by fatigue, insomnia, depression and anxiety.
In the lower thigh/above the back of the knee, the sciatic nerve divides into two nerves, the  tibial and peroneal nerves, which innervate different parts of the lower leg: Peroneal nerves. The peroneal nerves travel laterally (sideways) along the outer part of the knee and down into the upper foot.
The sciatic nerve is responsible for providing neurological signals to much of the lower anatomy, including the knee. The nerve roots which compose the sciatic are sourced in the lumbar spinal region. Therefore, there can certainly be a spinal relationship which causes pain in the back and sciatica symptoms in the legs, including the knee. This is also a very common diagnostic theory and is sometimes accurate.