@Chev fair enough, your body has been through heaps of poking and prodding! Understandable you don't want anything/anyone else touching. My very first Zoladex was done in my butt by fertility doctor - that's probably more personal though and you may have already had that spot tried due to DIEP.
Have you thought about doing the injection yourself? Maybe taking the control back and eliminating need for anyone to touch you?
Ive asked if I can do mine once I'm over active treatment, might be worth asking?