Good day, This morning at 0600 LT, my son aged 23 years was lying on bed and awake prior getting up. Suddenly he trembled 2/3 times and his body jumped slightly and went into fits with his complete body going stiff, and jaws clasped and closed tight and small amount of froth came from his mouth sides. He went completely unconcious for about 10 minutes and then regained senses and became normal slowly. He does not remember anything happening to him except that he felt giddy prior becoming unconcious. Request advise.