Hi Anamaria,
Wonder if you went ahead with the Sinus node ablation as my 15yr old daughters cardiologists has offered this procedure for her
Like you she is in bradycardia at times as she has 1st and 2nd Degree heart block but also has hEDS and POTS so has inappropriate sinus tachycardia aswell. It is the inappropriate sinus tachycardia that causes all her problems, painful palpitations dizziness lightheadedness.
Look forward to hearing from you.