Hello my 16 year old son has had 2 seizures in the last 10 days. They lasted for over 2 minutes and he falls and is completely unconscious,his body goes completely stiff his muscles spasm, he clenches his teeth, drools and froths, and makes unusual sounds out of his mouth He has never had any prior and he has and I don t care type of attitude. He also has ADHD, Anxiety disorder, and Depression can having these things be a cause for the seizures?