Is this a feeling or a sensation?

My husband is a great person whom I love yet I get really agitated by the sound of him eating. This may sound cray but recently I was relieved to find that this a recognized condition called ‘misophonia’ that is shared by a lot of people. I have even bought a book on it which he has read.
I find that when I am close by and I hear him eating or lip smacking I have a huge physical reaction – usually of rage and a strong urge to flee. I have been thinking about whether this is a feeling which I could start to manage through my thoughts or whether this is a physical sensation like hunger. It feels like a physical sensation – as if it is involuntary and I have no control over it.