Hi, sorry didn't see your comment till now. My experience has been that a tight fill usually loosens over the first week or so. I wouldn't rush into a defill so long as you can get fluids down. I know some people can't and do need to go to ER/ A&E, but time sorts most tight bands out.
By now I hope you are more comfortable.
http://www.wlsinfo.org.uk/forums/index.php gives lots of support and advice. There is another support group at
Hope all works out, do you have a blog (couldn't access your profile)
H x x x