help?

i had a very similar thing happen to me too. i was sewing thicker material, needle bent, i replaced needle, now its like the thread is wrapping around the bobbin and eveything is getting clogged up inside, around, and behind the bobbin. what do i do? i have cleaned it out and adjusted all kinds of stuff and tried all kinds of stitches, and it's the same thing evey time. i opened it up and watched it while i was sewing (very slowly) and its like the thread from the top isnt rotating around the bobbin all the way, it stops half way around, then the next stitch does the same thing....and so on, i have a big mess again. any suggestions?