<human>: My daughter is 20 years old, trim and fit.  She has high triglicerides (sp?).  She had been experiencing increasing frequent occurrences of a racing hear and chest pain which lasts for days.  They are not always coincident.  She had an EKG and they said it was fine.  What could this be?
<bot>: Hello! Thank you for asking on Chat Doctor! I understand your concern, and would explain that her symptoms may be related to a metabolic disorder like hyperthyroidism, which is a dysfunction of the thyroid gland. High triglycerides can also be related with pancreatitis, and a hormonal imbalance (like ovarian cysts). So a comprehensive differential diagnosis should be done to establish the possible cause of her symptomatology. I would recommend consulting with her GP for a careful physical examination, a chest x-ray, and abdominal ultrasound and some blood lab tests: - complete blood count-thyroid hormone levels-blood electrolytes- amylazemia- fasting glucose-cortisol plasma levels-kidney and liver function tests, etc. An ambulatory 24-48 hour ECG monitoring is needed if suspicions of a possible cardiac arrhythmia are raised. Hope to have been helpful! Best regards, 