Saw a doc about symptoms of leukemia, this doctors office did not have a lab.they ran a hemoglobin which came to 6.12, is that low?

Anemia: It is low, you do have severe anemia and may need blood transfusion(s). Cannot comment on leukemia. Would suggest not taking Ibuprofen and having iron studies.

Call doctor ASAP!: You are very anemic. Normal hemoglobin for a female is 11.5-16 range. While severe anemia can be a sign of leukemia, a much more common cause in a menstruating female is iron deficiency anemia. A teaspoon of blood( 5 ml) contains 5 mg of iron. So regular menses can deplete iron stores >>anemia. IF leukemia you may need a blood transfusion. IF iron deficiency anemia you need iron.