Hey Michelle!
Wow...what a confusing thing to have to try to make heads or tails over!! Sunny did a great job of locating information for u...and helped me understand this much more. Unfortunately u may only get real answers from the doc as to how this pertains to u. I"m so sorry...all u need now is more questions. I agree, this is prob going to lead back to the unknown autoimmune disease that they are still trying to determine for u. I did do a bit of searching as well and can only add the following links pertaining to Sideroblastic Anemias. It all, of course, links back to the same possible causes, but maybe just more info will aid in understanding. Please do let us know how u'r doing friend. Geesh..i hope the docs get back to u soon!!
http://www.irondisorders.org/Disorders/Sideroblastic.asphttp://www.merck.com/mmpe/sec11/ch130/ch130c.html