What Causes Spine Pain And Headache With Low Folic Acid?

Hi, my spine has been hurting everyday for 2 weeks now. It s causing me a lot of discomfort. This, along with a crushing headache everyday too. These aren t like normal headaches, it s a constant burning pain and mainly at the back of my head. I ve noticed a dent either side of my forehead too which I m pretty sure haven t been there until now. Also a large vein has appeared and doesn t go away on the right side of my forehead, pretty sure that wasn t there either until this all started. Also, I d like to add I m been experience nerve pain for over a month now that started mainly in my fingers and a bit in my wrists and toes. But over recent weeks it s just in my wrists and it s a constant burning sensation, like pins and needles feel to it. I had a blood test and it showed I was low in folic acid. I have a doctors appointment in a weeks time and hopefully she ll book me in with a neurologist. But for now I m really worried. And wondering if it the spine pain and headaches could be related to the nerve pain. Thanks, hope to hear from you.