Eye lashes on the top are usually an indication your top tension is too tight (or your bobbin is too loose). They can also happen when you make that swoop too fast. Flannel is notorious for making a lot of lint but you indicated you cleaned the machine. Is it possible your top thread is hanging up on something somewhere along the thread path?
Maybe this you tube video will help you.
https://www.youtube.com/watch?v=mx0Z...ature=youtu.be