Honestly thats a spooky sight. I believe that is Root Knot Nematode; I don't think that many galls would form from nitrogen-fixing bacteria at this stage of its development. It may not look sickly for awhile even with that many root knots.
2 good ways to check: Press a thumbnail into it- if its root knot, its hard; if its NFB gall, itll be easy to press into. Also, look at the surrounding soil and see how your other plants are doing!
Hope im wrong, good luck.