Hello, My parrotlet, Misty, is reaching her 14th year of life. I am very worried about her, she hasn't been able to fly very well lately. She can hardly get off the ground but still does her best to try and will sometimes flop to the floor. She still likes to adventure around on the floor and I keep a close watch for her so she still gets safe out of the cage time. I notice that she's a lot weaker than she used to be. I wanted to ask if this was a normal thing for birds reaching old age? I want to make sure she's not in any pain.