Treadmill 45:00 [3] 8.0 km (5:38 / km)
ahr:136 max:187
Took it very easy after yesterday's weird heart palpitations - my heart was racing at 100 to 120 until 10pm at night when I went to sleep. Really strange. I felt perfectly fine, just my heart racing for 4+ hours. I woke up at 2am and heart was back to normal, then struggled to sleep until the morning. Never experienced anything like that before.
So jogged at 6.5 miles/hour for most of this run, everything was fine including heart rate which was exactly normal for me. Who knows?