Hi, I have a 10 year old Maltese & she was diagnosed with Cushing's about 5 years ago & she has lost most of her hair & eat & drinks a lot...she does have a tumor on her adrenal gland but they said it was non-functioning...she had just started losing control of her hind legs...sometimes when she's standing her hind legs give out & she can't get back up...does anyone know if this will get any better or will it keep getting worse?