hiya sirius,well done for posting,i know that will have taken some courage.
i can only speak from my experience but i think that this happens to quite a few mums,you seem to lose your identity,after all for the last 2,3 years you,ve been concentrating on your child and looking after them and its easy to lose confidence when your child starts nursery etc.
this happened with me when DD went to nursery,what i did was the following:
meet my friends for a coffee either in mine,theirs or in a cafe.
make sure i spoke to my best friend at least once a week to catch up.
go out on my own for the day whenever finances permitted,sometimes i would just go to the library,
with me the most important part was making sure i spoke to other adults other than DH and the kids.
i never thought id get my confidence back but i did,and enough to enroll at college and start driving lessons.
please post more if you need to,there are no doubt many who have been in your position.
HTH
jen
xx