Couldn't find the original post. So started new one.
I just wanted to let everyone know that I have fixed my problem. It was my bobbin case. I was able to quilt the entire casserole cozy last night without the thread jamming in the bobbin area. My sewing machine sews so much better now. I will never touch my bobbin case screw again. I have learned my lesson. I will only adjust the top tension from now on.
My stitches look so much nicer now.