I get pvcs and told benign, echo normal etc. 32 years old male. my coupling interval is 250-300ms sometimes, i read this causes ventricular fibrillation?

Is the coupling interval fixed or variable? Are the PVCs multiform? Fixed coupling usually means the PVCs are caused by reentry. If unfixed and occur regularly, a parasystolic mechanism&an monomorphic irritable ventricular focus is likely. A PVC falling on the preceding T wave with a unidirectional block present can provoke ventricular tachycardia&V Fib. Consult a cardiologist electrophysiologist