It sounds like you have some stitching coming loose from your pleats. You don't want to leave that unchecked. Those pleats just need to be reenforced.

If you or anyone you know has any sewing skills, it's something that is fairly easy to fix at home. But if you'd rather, I can do it for you. Not having seen the extent of it, of course, this doesn't sound like anything I would charge more than $15 to fix.

If you are interested, just PM or email me.
M