And please, do not let others convince you that this is her faking, getting attention or using you. She would not have faked in the middle of a lake where she obviously could have died (horrifying story by the way, so glad things ended up OK). This is something that is 100% uncontrollable. It will probably continue to happen until she can find the root to her problem. If it is stress, have you talked to the doctor about getting her on anti anxiety meds? These helped a great deal when I was discharged from the ER for the same thing. I was able to function at least 85% normally on them, off them I function about 50% normal... The stress after knowing about this is the worst too. Finding out you have this problem that could be life threatening and could all be just "in your head" but you can't stop it... It's not an easy pill to swallow.