yes, I did read the whole topic now.
a) Too much Vit C has a bad effect on chelation therapy
b) regular transfusions, regular chelation (never stop immediately, only by too worse reactions).
My personal experiences: I'm allergic for all chelations meds. Kelfer/Deferiprone/L1 gave me swollen knees and because of that I was unable to walk good enough. And I couldn't stop eat. I was always hunger. All the time; day and night.... I got a reserve for my try of Exjade ;)
desferal: deadly allergic: swollen. red. itchinng. If you say he bloats, will that say swollen?
Exjade: I'd all side effects. sick, sleepy all the time, dizzy and black for my eyes. I'm give it a 4th try at the moment. Every 2weeks I take an other 125mg tablet.
c) I know it's vey difficult for a child, but are this tests done fasting? That will give (more) regular results.
I hope the second opinion will go well and that they find soon what your son has.
Take care,
Dore
p.s. my english is a bit bad at the moment :$