This is an interesting thread- I also donated eggs but have a really different take on the whole experience so it's quite helpful to read other perspectives.
How much counselling did you get before deciding to donate, and do you think it was high-quality/unbiased? The reason I ask is that I donated eggs for much less altruistic reasons than you- I was also going through infertility and was given the option to donate my eggs at the same time as IVF in return for very affordable treatment. At the time, I was desperate for my own baby and thought it would be nice to help another couple going through the same sort of thing, so I did it.
The counselling I received was very 'rosy' (it's the only thing I can really describe it as), I can remember the woman telling me that I would really have no meaningful connection with any children conceived from my eggs, so not to worry or think of myself as the mother. The counselling felt more like a sales pitch to be honest.
I was very lucky and got pregnant and as soon as my son was born, I was suddenly overwhelmed with the enormity of what I'd done and that there could be a biological sibling of his out there, looking just like him and having this genetic connection to me and they were completely lost to me. I found it very very hard to cope with. And then I eventually plucked up the courage to call the clinic and they told me that the recipients didn't have successful cycles, and then I felt terribly guilty about feeling relieved.
Personally, I felt that the counselling offered was inadequate and only explored the positives of donation. I'm really glad that you're happy with your donation and the positive stories on this thread, but I can't be the only person who felt such regret and distress (I hope not anyway, I felt like an absolute monster for the way I felt at the time.) It would, IMO, be better if the counselling was provided by an independent practitioner and not someone employed by the clinic.