I'm first taking it that you are using a Langstroth hive as you mention frames w/foundation and not bars which would be for a Top Bar Hive. Normally speaking the bees have this problem when they have been put into a hive and the frames have not been spaced correctly. You need to push them tightly together at the top and keep them equal amount of distance from the sides of the box. Next the problem with your bees drawing comb between to fix or not to. I would HIGHLY suggest that you fix the mess as soon as possible. The longer you wait, the WORSE it's going to get. If the comb cannot be used in a foundationless frame to save it, then toss it and start over. Just make sure those frames are tight together at the top.