My uncle was diagnosed with a brain stroke 6months before. He is diabetic and also have piles problem. Since few days he is having a periodic fever and his sugar level is little down from the normal level with fasting and suddenly he starts sweating heavily most of the time. The piles Dr suggested some antibiotics saying this get infected to pistola.. But even after medication of around 6 days the fever or weakness, low sugar problem is not going permanently.. Kindly suggest whether this issue may relate to some severe brain problem..