Can anyone help diagnosis what is wrong with this chick? Eats, drinks, walks/runs when necessary but becoming weaker. eating starter feed ground up in blender, clean water, hay on ground, heat lamp and room to move away. Not sitting or standing by lamp. Have other chicks - no problems yet. This chick came in with white around her naval. Looks to have cleared up, has crusty scab at naval now. Got her few hours after - 1 day old.