I developed peripheral neuropathy after the Pfizer vaccine. My symptoms include muscle fasciculations and spasms (in the beginning). The first medication I received was clonazepam, but I couldn't tolerate it. Fortunately, I eventually found the Neuro V Long-Haulers Facebook group. There are many members suffering from BFS associated with the Covid vaccines. There is a Danish physician who is helping us. His recommendations include a dietary supplement called palmitoylethanolamide (PEA) to reduce neuroinflammation. It is helping my nerve pain and fatigue. It might help with BFS. I recommend joining that group.