Helen, not sure if you've been on the ofrum - but for some reason I can't reply to your PM re FB. Have commented on the GABBies thread so hope you can find that (in the 'in your area' bit) and take it from there.
as Moser says, it is quite common, even normal, to have some pain after teatment, and she is right in sayoing give your BCN a ring. I think you are i the same neck of the woods as me (from your post on GABBies) and the BCNs round here are pretty good, thoguh sometimes you do have to leave a message and wait a few days for a reply. best thing is to phone and say in the message what your concern is - they seem to reply sooner that way!!
Sorry to see you haven't had any replies to your question yet, but while you are waiting for your fellow forum users to reply could I suggest you give our helpline team a ring, they're here for both emotional and practical support for you. Lines open at 9am today until 5pm (Mon-Fri) and Sat 10-2. Calls are free, 0808 800 6000