B12 deficiency and taking injection but weird side effects? Is this normal
Hi, I was feeling extremely tired, constant headache, broken nails and hair falling out and just a general feeling of being sickly and brain fog so my doctor send me for blood test and I'm b12 deficient. I get 1ml injection weekly for 4 weeks then 1ml injection once a month for 6 months. I've noticed after the first injection I had heart palpitations, shakey, i was more anxious and a high alert feeling and nauseous for about 3 days then it went away.. Now, after my second injection yesterday I'm starting to feel the same, nauseous, palpitations, i feel more anxious. I told the nurse who injected me she said i must keep an eye on it. Is this normal? Has anyone else been through this? Or is this something to worry about? What is these wake up symptoms people are talking about? Could it be?