How can he have so much energy being low, and a high is totally opposite?

[admin]

Question from a parent:

My son will have a low of 33, but he is non stop running around with so much energy. He does not tell me he feels low until he is below 50. I thank God that he has not passed out, but what I don't understand is how can he have so much energy being low, and a high is totally opposite. Its like they are backwards. Also I have been wondering if this behavior is caused by adhd. Does anyone experience this behavior, our should I have my son tested for adhd?