SG,
When my sister was very young about 5 or 6, she had a medical condition that at the time (I think as I'm only 2 yrs older than her), that meant she should not have kids. I've lived with this fear for her for all this time (she is now nearly 30), but have never really discussed this with her, but now that I'm going through our own LTTTC journey - i hold lots of fear and sadness for her. As far as I know, she is not yet thinking about kids, but then again she may - we are not that close.

I guess that what I'm trying to say is that things change over time, what you were advised may no longer be as correct as it once was, but I know how fear can prevent you from finding out. After two years, I would be speaking to a good GP and trying to find a good FS who you trust and take it from there - good luck.
FG