Narcolepsy
"My daughter was diagnosed with narcolepsy when she was 12.  Severe and accompanied by cataplexy, hallucinations in REM within 90 seconds, all facets of sleep disorders seemed concentrated in her young body.  She never got to drive a car. Narcolepsy dictated her quality of life.  On methylphenidate, which increases heart rate, for 27 years, she convinced her Dr to help her get in a sodium oxybate program. Sodium oxy dosage increased  per instructions over time, had delusional, withdrawn effects and  slowed speech. 4 months after starting sod oxy she was found dead in her apartment from a massive heart attack.  Accumulated effects from yrs of stimulants? A sudden jolt from sodium oxybate ?  Congenital defect? She did not abuse meds. CAUTION"