I have had low iron for 3 years and have been on 3 iron tablets and day but my iron is still low and i'm constantly tiered?

? bleeding: It is impossible to know the specific answer to your question as it pertains to you without more history and a physical exam therefore it is best addressed to your doctor. In general if someone had chronic iron deficiency a common problem is chronic occult bleeding often from the GI tract. This can be related to ulcers, colon polyps and other problems as well.

What's the source?: If you have anemia, you either aren't making enough red blood cells - or you are losing them somehow. With a low iron count, you may be losing iron through blood loss. In a young woman with periods, menstrual blood loss is a likely culprit. But you can lose blood through your bowel movements, in your urine, by bruising, or even nosebleeds. Talk to your doctor to see if you can identify the problem.