I'm sure they've probably already tested you for anemia, but if not you might ask for a CBC. My Dr. thought I was anemic, like I said in the other post, but my hemoglobin was only borderline low. Not low enough to be causing symptoms. Here is a list of symptoms from a pamphlet my Dr. gave me on anemia.
Symptoms of anemia:
Shortness of breath
Confusion or loss of concentration
Rapid heart beat(tachycardia)
Dizziness or fainting
Pale skin, including decreased pinkness of the lips, gums, lining of the eyelids, nail beds and palms
Sadness or depression
Another test my Dr. mentioned was adrenal gland testing.
Best of luck