Hi Lily,,, dont worry,,, they asked you to talk about how you are doing,,,( i am an adoptive parent ) talking about your pain is completely ok and dont forget they were the ones that contacted you about it.
You are going through a very tough time so do "NOT" feel bad about it, if they hadnt of wanted to know they wouldnt have asked.Personally, i would suggest that find someone else to talk to about it now though, maybe a counsellor would be a good idea,, i know a lot of bmoms here go to counselling to help. I think you need someone to talk to that is there for just YOU,,, kwim,,,i hope in my around about way i have explained myself properly ..

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I wish you all the best
proudmum