Hi there Dusty hun, Im sitting here sending you lots of lovely labour vibes.
Now Im not too sure on what else can rev up your contractions again, but the walk might help. Also DTD thats helped for me.
One thing I might add though is when my labours started and then stopped, between one hour and eight hours my contractions started up again. So thats what could be happening. The S & S might help too.

GL hun, your going to do a wonderful job bringing pheonix into the world. Loads of hugs.