Cycling50:39 [3] 24.13 km (2:06 / km) +269m1:59 / km (injured)
Lane Cove NP. Tentative ride, spinning in low gears. Back OK, might be the painkillers.
EDIT: Probably was the painkillers, had to take another one Sunday.
Back twinge, bending down to pick something off the floor, just before the session. Sore all day after - difficulty standing/walking - just like May last year except this was sudden onset.