Hughsey is exactly right.
You need to move her away completely from the piglets for a good few days, have you a stable or building she can be moved into?
When you get her moved try calming her down with a couple of tins of beer or stout, her udder will be painful with being full of milk still so a couple of ibruprofen (200mg) hidden in a treat such as a banana will help.
make a big fuss of her and spend some time with her if you can, failing that try leaving the radio on got her so she's not alone, after a few days she'll come into season and be so desparate for a boyfriend

she'll forget all about the babies at that time you can either put her in with the boar, if you put her back to the pen she'll still march about but it'll becoz she's mad for IT! Once her season is over she'll be back to her old self (Bit like baby blues & PMT in us ladies

)
HTH
mandy
