Heart palps with weights but not cardio
I am a 45 year old man, overall good health, athletic. Have lifted weights and done cardio for years. Last several months, have been getting palps while lifting weights, but NOT doing cardio (treadmill/stairmaster). The pattern is the same; whether doing benchpress, barbell curls, etc. as soon as I stop the exercise, it fells like my heart stops and then re-starts with 3 VERY forceful beats in a row. It is very disconcerting and sometimes hurts.
For the record, had nuclear stress test in February, all fine. Have suffered from anxiety, esp. in last 3-4 months. Add to that, recentl rise in blood pressure from under 120/80 several months ago to now running about 147/94. Wondering if all these are related!