GabiSL, you've inadvertently used the word "doubts" instead of the word "questions." In English we have or ask questions, not doubts.
Lexicographers and their dictionaries will generally define a "question" as an interrogative expression used to test knowledge.
They will generally define a "doubt" as an uncertainty of belief or opinion. Or more specifically, the subjective state of lying uncertain of the truth of a statement or the reality of an event as a result of incomplete knowledge or evidence.
Therefore you no doubt have a question rather than a doubt.
Read more about "doutb vs. Question" here