wow, my little raider buddy. congrats on getting them out. Sorry that they decided to punish you before they died and left. they were mad at you for making them homeless.
I own race horses. I've had people bring me horses that I knew were full of parasites. They were lazy, poor coat condition, big belly but no muscle tone. I would de-worm them and feed them. After a few weeks, you can't imagine the changes. They would be firing, bucking and playing all day. I think in a few weeks you will slowly start noticing little slow changes in your health. Alot more of your nutrition will go to you now instead of those free laoders.