Certainly keep moving and stretching. Pain doesn't necessarily mean something is 'bad' - I've had to work through that since badly fracturing my spine. I'm OK now, but do suffer stiffnes and soreness constantly, but it helps keeping moving. I'm OK now cycling and walking, and can do both for numerous hours now. Manual work, and bending do cause me pain.
Try a few pillows to help support your body - I'm worse than my MIL for pillows, i have 4, two under my head, and one either side.