It really sucks watching your beloved pets suffer for no good reason.

My dog has twice been nailed by bark scorpions, thankfully dogs are not as susceptible to the toxin as humans, but it was still alarming. The first time I rushed him to the Veterinary ER, the second time I understood what had happened and just waited it out. Each instance was accompanied by a "dead" limb, shaking, and loss of appetite. Recovery was near complete within 6 - 8 hours. Your situation sounds considerably less pleasant. Best of luck!