Surely you don't have them? (6)
I believe the answer is:
doubts
If this is the answer, I'm afraid I cannot explain it.
Can you help me to learn more?
(Other definitions for doubts that I've seen before include "Uncertainties" , "Suspicions" , "Isn't certain about, has reservations" , "Thinks something unlikely" , "Has reservations, is uncertain" .)