what do you do in order to fix a quilt that has pulled away from the seams? it looks like I might have missed some spots when I sewed the thing together. Now it's been quilted and washed a few times (it's my sons) and some pieces have pulled away from the seams. what do I do now? any suggestions? I'm really bumming. I'm just a beginner but boy did I learn a lesson. check all seams as I sew!!!