Sinus rhythm, which is based on the heart rate from the sinus node at the bottom, is a normal maximum pacemaker instruction and should be normal.
Intermittent 1 degree atrioventricular block, this is because the PR interval is slightly prolonged, or it may be intermittent atrioventricular block. It may be because the atrioventricular node has two descending paths, fast and slow, which are generally transmitted from the fast path, because at this time, a factor suddenly changes and jumps out from the PR interval of the slow path.
However, this is speculation, let's not talk about this.
The occasional room is as early as 24 hours, which is more than half of the normal room. It doesn't make any sense.
T wave changes, but nonspecific, may also occur in normal people.
As for nonspecific symptoms, don't treat functional differences as normal or abnormal.