E.K.
If he is exploding out of the diapers, they could be too small, or it just could be a brand that doesn't fit him well. If he is moving a lot now his body could have changed shape.
As for all the poop, teething can cause excessive pooping. But so can foods. What new foods have you introduced? You could be feeding too much fruit. Also intestinal problems could be caused by a food intolerance so you may want to look at the changes in diet.
Good luck, as a fellow cloth diapering momma I sympathize with all the laundry.