I have some strange symptoms and can't seem to figure out the cause. I have had and MRI and blood work done, everything came back "normal". Here are my symptoms: Tingles/ pins and needles- sporadically on the left side of my brain, left thumb, left arm, and bottom of my left foot. One time my entire left side tingled (including my face)- for about 30 seconds. One morning I woke up with such extreme vertigo I was unable to walk for a few hours. All of my symptoms happen at different moments, and I cannot connect them to any activity/diet/or stress. I do suffer from migraines, but do not experience these symptoms during one of those. My symptoms seem to be getting more frequent. And as I am typing this my left thumb is having its own little dance party. Any suggestions on what I should do next?