An unusual cat problem...
I've done a lot of research, but to no avail, and I'm hoping somebody here can provide some assistance or guidance. Unfortunately I cannot get my cat to the vet for another 3-4 weeks at least.
I have 2 cats, both have very large frames (they do not fit in any cat carriers, I have dog carriers for them), and are overweight too, weighing 18-20 pounds (estimated). I know one could stand to lose probably 2-3 pounds and the other 3-4 pounds. They are 6 years old, and will be 7 on July 31.
One cat (the one that is slightly heavier) started demonstrating some unusual behavior a couple weeks ago. When I was brushing him, I noticed that he would turn his head when I ran the brush over his hind quarters, and sometimes snap toward the brush. After doing this a couple times, he would start licking his front legs, almost like a reflex action from the brush passing his hind quarters. Out of curiousity, I did some more work on him, scratching him where his tail meets his spine (something almost all cats enjoy), scratching his hind quarters, and even patting him back there. Everything gives him the urge to just lick his front legs. I don't think anything was hurting him (at least not badly), but it was obviously causing him some sort of discomfort. He will get mad if I keep up any of this activity.
At the same time, I noticed that when he sits, he will always lift his front left leg off the ground and hold it in the air. However, he will walk, run, and jump normally without any indications of pain in that leg. I can touch that leg, even grab and hold it, and it does not seem to bother him.
Obviously, something is bothering my cat, but what could it be? It's only impacting this one cat, the other one is healthy as can be (minus needing to drop a little baggage). Any information/ideas you have will be appreciated, thanks!