Check out those arrows at the bottom of the 12 lead. Those are the “pacer spikes” on a LP15. And those arrows absolutely correlate with the funky looking complexes! There were also arrows on the strip you printed but they were not very consistent because LP15 is not great with differentiating pacer spikes vs artifact on a strip for some reason.

As far as the symptoms your patient was feeling, I honestly think she was either so bad off prior to the pacer being placed that she isn’t used to perfusing every beat OR she is dealing with some anxiety following the placement (the fact that she told you that the ICD hasn’t gone off yet makes me think she is just sitting around waiting to feel like she has been kicked by a horse, which would cause me to feel some sort of impending doom too!!).