I don't know. Remember, this is a support site -- not a medical one. Most docs. say it doesn't damage the GI tract - except for the tendancy to develop IBS (about l out of 5 sufferers develop it).
Personally, I can say I've had GI problems since having C. diff. (first episode lasted 4 years - extenuating circumstances - and a second bout two years later.) It's been years (l999) since I've had active C. diff. and never had GI problems before C. diff. Since, however, I've had them "off and on. " I'll be fine for months -- then have days of misery. I've had tests that don't show much. Most "experts" agree C. diff. can affect your immune system, but few agree on anything else. Remember, you are the ultimate expert on your own body.
C. diff. is a strange disease and affects everyone differently. Most people recover without side effects. A few of us continue to suffer for no "particular reason." Don't think you are "weird" because you are still suffering and don't let "experts" tell you that you are. Few know much about C. diff. even though it's been around since the l970's. Finally, however, it is receiving the attention it deserves, including a new medication that might be helpful. (This means C. diff. is finally worth $$$ -- always the "bottom" -- small pun -- line.) Try to keep a sense of humor. If you can laugh, you can live.
Live each day to the fullest you can. Exercise if possible. Eat what you can tolerate and be sure and take calcium and Vit. D -- if you can tolerate them. Drink adequate fluid (water best) to stay hydrated. Try not to worry and avoid stress. (Difficult to do - especially with C. diff. and its possible side effects.)
See the forum CDI for more ways to cope.
Good luck to you.