I have a 8 year old red earred turtle that is acting strangely for over a month. The main thing I am concerned about is that she(we believe) has lost interest in eating. She does not appear to have any of the classic respiratory symptoms, like wheezing or excessive bubbles coming from her nose. We changed her environment lately by purchasing a 40 gallon tank with heater and larger basking area and try to entise her with crickets, vegetables, etc. Often she seems desperate to get out of the tank or digs into the gravel in the bottom of the tank. Also we see her scratching at her tail. Any advise you can offer would be greatly appreciated.