"It just feels wrong."
Translation:Es fühlt sich einfach falsch an.
The verb is 'sich anfühlen' and in this sentence it is seperated.
Another example for 'sich anfühlen':
'Der Stoff fühlt sich gut / weich an.' 'The fabric feels good / soft.' (I hope you can say it in English like this, not sure it's correct. ;) )
thank you. Duolingo is completely silent in the hover hints that this is a different verb from fühlen.
Basically when you talk about how something feels... It is not easy to know!