For over 2 weeks now, my beautiful blue roo has been weak, wobbly, some days good, some not so good. Eats, drinks, poos, not losing weight, but acts like he has a blood sugar issue!! Or drunk!! Even has a "wobbly" crow! He's on 16% layer, have medicated his water with tetra, vitamins.....still loves treats. He's been in the sick ward for a few weeks now, with heat, away from any excitement. My other roos were bullying him, but they're gone and he's had time to recuperate. Ideas?