Hello! Thank you for asking on HCM! Regarding your concern I would explain that facing your clinical scenario and medical conclusions after getting to the hospital, possibly you may have experienced any
cardiac arrhythmia when playng in that casino, and after having that prompt bystander"s intervention no any evidence of heart damage has remained.
If a damage or other disorder would be present to your heart, then clinical exams ( ECG, cardiac ulltrasound, lab tests comprising cardiac enzymes, and even coronary angiograms) would reveal any anomalies.
Another option may be any neurological involvements like
syncope or
epilepsy, etc a reasonable explanation for your situation. In that case a
neurologist visit with physical inspection and possibly additional recommended tests may be of help.
If you need a more specific opinion please upload your medical test conclusion.
Hope to have been helpful.
Greetings! Dr. Iliri