NO FAULTY FILM HERE!(posted 9201 days ago)this in some way was your fault. all the info isnt here for the correct answer.. only you know what you did.
i will guess that either your developer was mixed improperly, or your developer temp was too high. either of these problems will cause the emultion to swell. bad film causes no such problems.
its also possible that your developer could have come bad from the manufacture. this would mean that the developer was shy or didnt have any sulfate in the mix. the sulfate is what keeps the emultion from swelling.
what you should have done when you took the film out of the wash, and felt it was heavy, is put it right away in a hardener solution.
dr