I've noticed a bedroom door is a bit harder to shut (I honestly can't remember if it was hard to shut before?) and there are some cracks in our drywall. Is this just typical winter settling or is it a sign of a bigger problem? I looked around our foundation (on the inside) and can find a few small cracks (or so i thought!) but am now starting to worry because hard shutting doors can be a sign of a problem! I've attached the cracks (btw- the windows were installed two years ago) and the foundation cracks that I can find.