Take a prenatal vitamin, cause they are loaded with the iron and fiber in a safe dose. And get that checked, really.
Blue palms and feet can be caused by medications such as calcium channel blockers often used for high blood pressure, and any medication that depletes iron. If you're not on anything, then there's a good chance it's some sort of nervous problem or vascular problem constricting the blood flow to the hands. Either way, it does need to be checked out. While the tissue can remain alive with a lower oxygen content, the biologic processes are slowed. If they go too slow, cell death will exceed replication, which will cause gangrene and possible need for amputation.
Have I scared you enough? Seriously, run it by a GP. They can tell you if it's really an issue.
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Every time you think you've made it idiot proof, someone comes along and invents a better idiot.
?the end of our exploring, will be to arrive where we started, and know the place for the first time. - T.S. Eliot