Looking for advice

I have been having burning sensations in legs, numbness/tingling in arms & legs, muscle twitches, charlie horses in thighs, muscle weakness, shooting pains in arms, legs, fingers for 8 months now. It all started last Nov when I got very ill. Was told had a viral infection turned into flu. Three days later could barely walk (took almost 2 months to regain normal walking) legs were numb, felt strained and weak (also in both arms from elbow to shoulder). Every time I catch a cold since it flares up & a different part of me gets affected with same symptoms. Have had 2 EMG's, hip & spine xrays, brain mri, spinal tap, and a ton of blood work done which has all come back normal. My doctor has me on 300mg gabapentin which I take 2 in the morning & 2 at night. It has helped make me be more of a funtionable person but just masks the problem. Neurologist said there is nothing neurologically wrong with me. Any suggestions or anyone going through similar symptoms that has any advise would be greatly appreciated. :confused: