My 8 month old lab had his first bull stick yesterday and ever since he has gone poop every time we take him out. Yesterday was probably 5 times. He usually goes 2 or 3 times a day. My question is what can I do as he seems to be uncomfortable. I let him out and he tried 3 times to go poop and was unsuccessful. He is rubbing his bum on the floor a lot. Could this be something else? What should we do about his food? He ate 1 cup this morning and he gets 2 cups in the evening but should I hold off on the dinner tonight? TIA