Back pumps are painful muscle pumps in your lower back.
You're on Halo, you'll know soon enough. haha
And yes, taurine cures those (for the most part).
Day 7 - S4
Rest day.
As I mentioned before, I am sore as fuck right now. Not sure why exactly, but it seems my muscles hurt way longer than normal after WO.
Seems to be the case for my lower back as well. Being that the pain is still here and was fucking with me all night, it's not BPs it's just a sore as hell lower back...
Hope this changes soon, as I can barely move around. LOL