Iron infusions are quite painful for most people. It might just be the iron procedure itself. They are usually not done unless it is a last resort for this reason.
Here is a monograph example:
http://www.drugs.com/sfx/iron-dextran-side-effects.html
I would discuss this with your doctor... it is possible the reactions you are having may be treatable.
__________________
All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
************************************
.
Weezie looking at petunias 8.25.2017
****************************
These forums are for mutual support and information sharing only. The forums are not a substitute for medical advice, diagnosis or treatment provided by a qualified health care provider. Always consult your doctor before trying anything you read here.