Iron levels this low are deadly serious (I had mine as low as 3 once so I know what I was told) run don't walk to that dr and get help. If you can't tolerate pills the alternative treatments (and the one with iron as low as you have is likely the only choice anymore) is IV iron treatments and transfusions. Avoiding treatments rather then finding another solution in this case could be deadly, it's the iron rich red blood cells that carry oxygen to your vital organs, without that oxygen they will not continue to function. So to answer your question, the worst thing that could happen if you don't get medical help with iron levels this low is you could die! Get help, there are alternatives to pills, and you need to have the dr's look for and determine the cause of this low an iron level. Are you not getting enough iron in your diet? Are you not absorbing iron properly? There are many causes, finding the cause is likely to be the key to finding the long term solution to avoid having this issue repeat over and over, or at least if you are in the category that I am and it's a genetic issue they can plan to deal with it properly so that it isn't dropping so low as this!
