Supergirl,
As far as I know chelation should NOT start till a child is atleast 2 years old. this is specifically for growth issues. For tummy aches, we found that giving our daughter after meal helped to reduce the ache. as well as splitting the dose. Hoe AK is doing fine now.
Cari,
all children when they first start school or daycare go through this (repeated infections, fever etc). My daughter went thru the cycle so did all other kids in her class. You will see next year will be much better for Ari. Just ride it out....don't worry too much about ferritin..with repeated infections, you are not truely getting the correct ferritin reading. The yearly check up thru MRI or SQUID is the only way to know how bad is the Fe in the organs.