I Am Sher Muhammad From Abbottabad North West Of Pakistan.

I am Sher Muhammad from Abbottabad North west of Pakistan. My son is 13years old studying in class 8th.from the last few days he was feeling a mild backache . Toady from the early morning he complained increase in pain. In the evening, he suddenly got fainted with low blood pressure. About twenty minutes he remained unconscious . What may be the possible reason. It had never occurred before like this.