Are you sure you're not using too much ACV? I wanna cry too if it gets in my eyes or anywhere other than my hair. It can really sting. I keep a solution of vinegar and water in a spray bottle in my shower and spritz it on that way. You really don't need to use much at all - just 1/2 tablespoon to a cup of water for long hair - and if the smell bothers you, you can rinse it off. I use white vinegar, BTW. It's just what I have on hand all the time.
3a/medium texture/normal porosity