i have an 8 1/2 year old budgie that lately has been sleeping more and more but today she is sleeping and is all fuzzed up. i don't feel any belly or chest tumors like i have had with budgies in the past. her nares and eyes and vent are clean. she is preening still and eats a little but today all she wants to do is sleep. does this sound like she's just old? i am devestated at the thought of losing another baby