I've noticed that recently PiePie has been losing a couple of clumps of fur (by clumps I mean a few hairs, maybe 4/5 together, not huge bundles just falling out). It's summer and hot down here in SA right now. Is he just losing a winter coat or shedding because it's hotter? Or is it something else and should I take him to the vet? I checked over his skin and there doesn't seem to be any problem, but you can never be too careful... Any advice greatly appreciated! Thanks