I bought a hay bale from a local feed store (big mistake as I have nowhere to store it) and I found 3 little brown bugs. The bun has been shaking his head in a weird way but that could be just lazy binkies. Could these bugs be fleas?? I found 2 around his pen and 1 around the area where I put the hay bale down for like a day. I'm so nervous! I'm a new rabbit owner and am petrified of the bun getting fleas!! PLEASE HELP!