Had a good/weird session last night.
Mentally it was hard for some reason but I felt great after the run, not drained or exhausted and the HR was not spiking high. So that combo was a bit weird to experience.
5minutes at 4.20ish pace 104 HR
5minutes at 4.20ish pace 140 HR
5minutes at 4.20ish pace 144 HR
Going to go for two easy days of 40 minutes or so and I am thinking of doing the 4k test but this time really push it as I felt that I didn't push it on my first 4k test.