Twice I've had batches smell and taste like vomit during fermentation. I don't know what does it or what it means, but for both my barfy batches, I fed it more nutrients and energizer and it went away as soon as fermenation was done.
I'm not sure exactly what effect hops in primary has on a fermenting brew so that might be the source of it, both my yucky batches contained fruits, and they both turned out fine at the end. What was your starting specific gravity, and what is it now? That'll give us a better idea on how your fermentaiton is progressing.
Your English is perfectly understandable, where are you from? If you list your location in your user CP settings, we can make suggestions about local sources for nutrients and energizers and everything. If your yeast extract isn't the salty-tasting kind, I'd suggest adding a little more.
And welcome to the forum!
"The main ingredient needed is 'time' followed closely by 'patience'." - The Bishop 2013
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