Dear Jane,
Glad you found the cause of your leg problem.
I have found over the years that in general the postings on the FaceBook page are good and helpful, but sometimes (sadly) can get into a nasty back-and-forth. I would tend to suggest that you drop in there now and then and read over things, in case something comes up where you can help. For example, if someone else posts about having leg problems after donation and you responded sharing YOUR experience it could be a life-safer if that person does have a clot and does not take care of it. And sometimes people there just ask about experiences at a particular hospital or with a particular surgeon, and if it applies to you you could help with info.
Fr. Pat