I was treating with Sulmet, for suspected cocci. I realized after 4 days I had not reduced the dosage, so I reduced at 4 days, then stopped at 7 days. Since stopping he appears to be blocked up... have massaged crop to get it passed, put oil in water to help it pass, but everything he eats, which is very little, still impacts the crop. His stools are less bloody, but still diarea. What should I do next? His body is hard, breastbone protruding...poor baby...