I have a 8 week old gray squirrel who been doing great till yesterday he suddenly was having trouble with back legs, I immediately thought of MBD & crush a 500mg Tum mixed it with bit of apple juice " he took it with no problem. After bout 30min he was back abel to use his legs & was eating well but wasn't being active then last night it was like a switch flipped, he was freaked out keep twitching constantly & tapping back feet. He done this for several hours & is doing the same thing today. Please help