I Understand what you have been feeling as I too have gone to a neurologist for symptoms buzzing, tremors, weak legs, muscle twitches all over and was diagnosed with restless leg and I know that is not what I have. After all the testing performed the Dr. doesn’t have a clue so he has to assign me with something I guess.

You should ask your primary care doctor to refer you for EMG testing. I developed sensory and motor peripheral neuropathy due to the Covid vaccine. For relief of the nerve pain in my feet, I have used 5% Lidocaine patches at night. I discovered it's also important to wear shoes with heavily cushioned insoles and avoid walking or standing on hard surfaces to allow the nerves in my feet to heal.