For free motion you obviously want to drop your feed dogs. I usually put mine on a slower speed and move the fabric slowly rather than jerking it around. The little metal finger that forces the thread through the needle may have gotten bent slightly. The worst thing that could have happened is knocking your timing off balance, but it would not make a stitch if that was the case. Sometimes, if there is a lot of vibration during free motion, the needle screw may loosen. Make sure it is tight and retighten every time you take a break during free motion quilting. I now have a Bernina but on my TOL Pfaff I had to do that when embroidering or sometimes the needle would just fall out. What a mess! Lift your needle to its highest level and see if you can get that needle threading finger to into the eye of your needle. You may be able to bend it back into place. Again, I had to do that to my Pfaff, more than once! Best of luck to you on this, I know it can be frustrating! Michelle