Hello, my bearded dragon is only a juvenile (just got in January) and starting about 2 weeks ago his back legs began twitching like crazy when he was eating. He literally lifted his entire back area off the ground and was twitching like crazy. Now it's like he can't use them well and he won't stand tall just belly walks. I heard this could be a calcium or vitamin D issue? This is my first bearded dragon and I would like him to be healthy and happy. What can I do immediately that might fix the issue?