Rehab #5: WOD #2 decending ladder of Towel Pullups and Pistols and DUs Workout

I did the following at a quicker pace, but not rushing too much to comprimise form at all to keep safe as well.
10 Towel L pullups
10 Pistols (free open)
50 DUs
8 Towel L pullups
8 Pistols (free open)
40 DUs
6 Towel L pullups
6 Pistols (free open)
30 DUs
4 Towel L pullups
4 Pistols (free open)
20 DUs
2 Towel L pullups
2 Pistols (free open)
10 DUs

Felt good, but I was feeling it a little bit in my lower back and so I took a little longer to stretch out again and then took a steam and a hot shower.
Overall the body is feeling o.k. but the back is still hurt and I'm still feeling twinges of pain and limited ROM in my lower back... STILL REHAB for a while longer. But I might be able to do some lighter movements with some weight.. but keep being careful for a while longer.