workout injury yesterday, now body feels tingly

I was doing kettlebell swings and then got a huge pain in my left lower back, right above my butt. I could barely walk or bend and I spent the whole day resting and icing it. Today I wake up with it feeling a little better but still hurts when bending at certain angles and it feels like my left buttcheek is asleep. Tingly, staticy feeling like when your foot typically falls asleep. I'm now starting to get those same tingles on my left shoulder and my left foot. What should I do? I can walk now and have most of my mobility in general. Pain was 8/10 at first and is 0/10 now unless I bend in a certain way.