I received my 4th Pfizer shot on January 28th. To this very day, I am still experiencing nonstop numbness and tingling in my feet and fingers, weird electrical sensations pulsing through my limbs. Some days are better than others, but it never goes away and somedays it just takes over. I have had neck MRIs, EMG, a dozen blood tests looking for auto immune and vitamin issues. Every single test comes back normal. My neurologist believes it may be an auto immune related small fiber neuropathy caused by the vaccine. 2 of my other doctors also believe it is a vaccine side effect. I have tried Neurontin which just made me feel like a zombie and didn't help. I've tried every supplement said to possibly help, no response. I notice when I am stressed or try to do alot of physical activity, it gets worse. After long walks, my feet are numb ,like 2 blocks of ice. Everyone tells me it will go away, whatever "it" is.Whatever it is we are experiencing, I don't believe that there is a test for. Seems like everyone eventually does get better, whether 4 months or a year. I am in my fourth month of this craziness. I have reported it to Pfizer and to VAERS., for what it's worth. As an RN who saw many of my friends and colleagues die of covid before there was a vaccine, I am thankful to still be here , tingling and all. I probably would have stopped at the third shot. However, I am in a high risk group, over 60 and a poor immune system. I also live in an area where many people refused to follow any health precautions, even as the hospitals were piling the dead into refrigerated trucks. I wish everyone well. Oh, BTW, the European health agency (I forget what they are called, equivalent to the CDC) does acknowledge that the Pfizer vaccine can cause paresthesias as a side effect. Why or how to treat it or even diagnose it, no one seems to know.