Hi everyone, I have two 8 month Ragdolls - Baci and Dolce. Baci has been having very inconsistent stools (firm or soft daily) and most recently very bad diahrrea. When the stool is firm it is very dark and when it is soft or runny it is light brown. He is very high spirited and always hungry. He has no signs of illness. About three months ago I switched them over to Solid Gold dry and canned. He is etiher allergic to an ingredient in his food or may have parasites. He has been seen for worms in the last 4 months and the tests were negative. Has anyone experienced this sort of problem? I have never had a cat with worms - is it common for the cats to be so hungry, yet have an upset stomach? Your thoughts on this are greatly appreciated. "Concerned parent."