I am not sure why, but suddenly my singer is not sewing correctly. Put more thread in bobbin. Set tension to different settings to see if that helped. Moved around the wheel that sets different stitch widths to see if that helped. The results is either not making stitches and easily having to rethread the needle, or skipped stitched, or wadding up on the back side when it did attempt to stitch on the top of the fabric. I am frustrated with so many projects to work on for Christmas. Anyone have any ideas?