French language Q&A Forum

I don't understand the construction of " j'avais des démangeaisons ".  What is the role of "des"?  It looks like a preposition between an auxiliary verb and a main verb.  Or is "démangeaisons " a noun?  It certainly looks like a verb.  Thanks for any help.

Is the negation Ne...aucun/aucune always used with countable nouns?? '(Je n'ai aucune idée.') I am getting confused because of this post here - 

https://french.kwiziq.com/questions/view/could-you-also-use-aucun

In this post, Chris mentions that....aucun refers to countable objects, then how can we say -  Nous n’y voyons aucun mal. [We don’t see any harm in it.] 

Here the noun mal is not countable. 

Please clarify.

Au cours des années, elle m'a transmis sa passion - why is passé composé used? She clearly says 'over the years' so a repeated action? surely the imparfait would be used here?

Est-ce qu'on utilise "À partir du premier jour des vacances..." au lieu de "Dès le premier jour des vacances..." dans ce contexte ?  Si non, pourquoi ?