Is this an irregular form? The infinitive is "gjøre", so isn't the present tense form supposed to be "gjører" according to the rules?
Am I the only one who don't hear this sentence ?
It's a new sentence, so it takes a day or so for the audio to load.
Audible as of 22Oct15.
So, does Norwegian have a strict do/make separation, or is it fuzzy?
is the verb gjøre irregular?
Yes, the verb å gjøre has an irregular present tense form, gjør.
Source: Norwegian on the Web
Is the tone all you need to change to go from regular curiosity to actually being worried?
What do you mean?