Hi, My 12 year old Chessie has been scratching suddenly at various places all over her body. The vet examined her and ruled out illnesses caused by mites, and we thought that perhaps she was having an allergic reaction to something. But one odd thing recently has happened that seems a weird coincidence. She’s always loved to have her belly rubbed, but never displayed the common hind leg scratch reflex. Now, though, the leg scratches furiously at my slightest touch of her belly. Would someone please let me know if this is a common change in old age or could be related to the general itching issues she’s had?