Grey (12 year old male in door only) is 1 of 3 litter mates... I've notice his tail closest part to his body feels as though it gotten a little thicker...and feels warmer than the rest of his body...could that be a problem

Optional Information:
Age: 12; Male

Already Tried:
nothing...you folks should post..."What will you PAY...if you are satisfied...it's ridiculous coming back with that question...