when my Nell was diagnosed with cushings , she swelled like terrible, but no pain or discomfort , not that i could see anyroads,
then one day early morning, i let her go outside fer a wee, i watched her like a hawk, i only had her best interest at heart, she came back indoors
i picked her up took her the vets, that was it, no way on gods earth was i willing to let her suffer for my selfishness, i didnt want to part with her pure and simple, so terry you say the lump isnt getting any bigger, so heres your answer, just keep your eyes on him, hang on if he dereorates you will know