I need to take a iron pill because my iron was a little low. the iron pills make me sick. would i get enough iron from a flintstone with iron vitamin?

No: Unlikely, however let your provider know there are numerous Iron preparations and I am sure you can find one that you can absorb without the GI upset.

Iron deficiency: Iron pills cause upset stomach and sometimes nausea. You may try liquid iron supplements or a more natural way to deal with it is to ingest meat frequently.

Probably: A much more important question is how to define iron "a little low". If you really have iron deficiency it is important to determine the cause. Nearly all iron deficiencies are due to bleeding somewhere. Note also that there are many kinds of anemias. Unless an anemia is due to low iron there is no benefit from iron treatment. Too much iron, hemochromatosis, is very serious.