forgot to mention that echo was normal, stress test was done and my heart rate climbed approprately to 170s......usually with junctional rhythm your heart rate doesnt increase like that!
Hard to answer your question. To me it appears they are borderline. And I am no expert.
A lot of strange things in the heart happens during sleep. The sinus node is, and should be, slowed down, which can cause other "pacemakers" in the heart, including the AV node, to take over. This is called escape rhythm. Atrial escape rhythm, nodal (junctional) escape rhythm and even ventricular escape rhythm can occur during sleep and is considered, to a certain degree, normal phenomena.
Pauses during sleep should not be longer than 3 seconds.
It's good that your heart rate responded properly to exercise.
The fact that your sinus node stops during activity is abnormal. This MAY indicate so-called sinus node dysfunction, which is, in severe cases, treated with a pacemaker.
Your cardiologist must answer if the findings are significant/serious enough to warrant a pacemaker implant. This is difficult for us, as patients, to decide.