Thanks for the responses. I posted another thread that everything is fine now. I changed the needle and the noise stopped. I think maybe the assembly wasn't very tight, but that is not the case now, and there is no unusual noise. Also, I have corrected the bobbin winding issue.
I am really starting to love this machine.
I'm having tons of fun with it, and I am going to sign up soon for the Leah Day FMQ class on Craftsy, so I can learn to do that. This is the first machine I've had that is set up for FMQ. I cannot wait!