My daughter has been tired, short of breath, cold, and moody for the past several months. I thought that she might have a thyroid problem, so I had that checked out and she was okay there. She is not herself as she had always been so athletic and had a lot of endurance. Now, she gets tired very easily and doesn't want to do much physically. She has gained a little weight-maybe 15 pounds which makes her feel depressed. I just can't figure out what is wrong. I don't even know what to ask the doctor to check for.