A doctor checked my blood pressure last Tuesday, she said that it was really low & that I had a slow pulse, today I'm experiencing lots of crazy insane dizzy spells, blurred vision almost like a dark grey cloud blocked my sight for a few seconds & even my hearing went out for a minute or so, it felt like I had cotton balls in my ears and could barely hear, I feel like I want to throw up but don't actually do it. My toes were cramping so bad that one of my toes was stuck on top of my middle toe, my whole right leg felt kind of tingly like pins and needles everywhere and almost numb like & a slight headache. Are these symptoms related to the low blood pressure? How serious is it to have abnormally low blood pressure? Should I be worried?