6 Month check up

I went to see the nurse for my 6 month check up and all my levels are good except for my Iron. 3 months ago my Iron was a 79 and it went down to a 14....could be why i am tired all the time. She said it is really low.....she put me on Iron pills. I hope my insurance pays for it. I think they well. My B12 level is over 1400 so she wants me to cut my intake in half. She saids I can even stop them and see what happens at my 1 year appointment. i really don't want to stop them all together so I will take one a day. Did anyone Iron drop so low? And what did you eat to help your iron intake. Thanks for the help.