Is it hot where you guys and he lives? Where is he getting his water from? (water bottle, bowl, etc..) How much water is he drinking? What kind of food and how much is he being fed? Is he being more active, how big is he? Is there anything that can be stressing him out? Rabbits are prey animals and don't always show when they're in pain or scared, so they're hard to read. Track if the urine looks normal and if there is more or less of it. Note: Rabbits, especially unneutered rabbits, can have a translucent, pale yellow, brown, and dark red color to their urine. A cloudy look in urine can mean they're not getting the water they need. "Alfalfa Hay can be fed to growing rabbits because their requirements for protein, energy, and calcium are higher than what an adult rabbit needs. Alfalfa Hay shouldn't be fed to adult rabbits because it contains too much protein and calcium and prolonged consumption may result in kidney damage." I suggest not feeding Alfalfa Hay anymore but adding more veggies, grass, and his regular pellets to his diet in a healthy amount. You can get little cups of grass or get grass seeds and grow it yourself and feed it to him. Cat Grass is okay to feed but he'll definitely need the hay after a while so don't try to just feed the grasses. Avoid grass from outside because it might not be safe for him to consume. (make sure it's just pellets, no added treats or sees in the foods.) We purchase hay from local farms in which we get large amounts for less than the small bags you get at the store. Make sure he has rabbit-friendly toys that he can chew to keep his teeth from overgrowing. Do you have a photo of what he looks like? I hope I can help!