Same thing happened to me. TRT for 2 years straight after 12 years of cycling on and off for 12 weeks on 12 off. I consider myself a very experienced bodybuilder and I have a bachelors in exercise science with a masters in kinesiology. I've studied, experimented on myself, and spoken with high level ifbb bodybuilders.
About 1 year of TRT gel daily was great UNTIL all the heart events. Example, went jogging one day on lunch break like usual and Ventricular Tachycardia happened...non-sustained...my heart re-set after about 5 seconds but it scared the crap outta me so I called my cardiologist and drove straight there to get an ekg. EKG was normal as I suspected and doctor said I was fine. 2 weeks later I was jogging on the streets about 4-5 minutes in and BOOM...heart sped up erratically, stopped within 5 seconds.
A few months before the VTach episodes I was admitted to the ER on 3 separate occasions for chest pains, shortness of breath, anxiety. EKG's, X-rays, ultrasounds, blood tests, echos all negative for heart disease. Prescribed propranolol.
At 34 years old, I bought blood pressure cuff (smart), pulse oximeter (smart), asthma spirometer (too much?), glucose monitor (smart), and infrared thermometer (smart). Tested myself extensively on and off Testosterone and had doctors order complete blood work monthly. Testosterone use, for me, is dangerous. Could I cycle safely? Maybe, but not worth the risk.
Testosterone brought my blood sugar into the low 50's (been eating CLEAN for 15 years). Never felt hypoglycemia like I have while on Testosterone. Did that cause my VTach? Maybe.
Testosterone suppressed my cortisol. Morning serum blood draw was low end normal. Panic attacks? Probably.
Testosterone let me workout like I was 18, have sex like 18, move quick, think quick, recover faster, and run high octane. Adrenal fatigue? Probably.
My resting heart rate went from 52 pre testosterone, to 40-44 post TRT.
I've lost my gains, lost my hair, lost my sanity being off Testosterone...but I'll be fine as long as I don't experience ventricular tachycardia for a LONG TIME.
Been off 6 months still working out, natural T levels 375-420 and haven't experienced VTach but still get anxiety and chest pains once in a while.