To answer your question, EKG's are tracings of the electrical activity that's going through your heart at that particular instant. They will only tell your health care provider if there's an electrical conduction problem. Insta-Care Clinics, Minit-Clinics, most Urgent Care clinics are only designed to diagnose and treat minor, routine problems, not to provide diagnoses of complex problems and provide long-term treatments. You need to find a regular doctor, one who can do a full work-up to find the cause of your chest pain
and other symptoms and who can provide a long-term / ongoing treatment plan. Good luck.