About 2 days ago I started feeling nerve pains in my lower back and down my legs. I thought it had something to do with my sciatic nerve. It only happened at night and would keep me from sleeping. I have not felt that pain since the first two times but my body aches and my muscles are sore especially my upper back and neck. This also comes with pains in my knees and numbness in my arms and feet. On top of this I've been going through a repetitive cycle where I start to get a headache and it brings chills and a high fever. I feel nauseous and tired but it is hard to sleep. Once the fever starts to go down I get extremely hot and when it's completely gone I feel a whole lot better until the cycle starts again. I thought it was the flu because of the fever the chills and the aches but I do not have a cough sore throat runny nose or any chest pains.