Was having Vit B12 tablets post that my overall body temp has raised appox after 10 days started getting headache as well. Its almost a month now, having 2lts of water regularly , having tender coconut as well but still facing same issue of body temp been high.. 3 days before and today have seen small amount of blood on motion and its extremely hard as well. Kindly suggest what needs to done to know the cause of sudden increase in body heat.