Hmmm, the pic quality is good but not the same as if I saw them in person. Have you done any fecal tests on your frogs yet? Are the worms round or flattened, are they segmented or continous, what do the ends look like (hooks, barbs, etc)? I have my text out right now but I can't make out the above stuff from the pic. Hmmm you may have a problem but with out a fecal test or the above info I'd rather not speculate. Let me know.
Mike
Mike