My eyes and scalp would have that reaction to vinegar, but not normally to protein treatments. Since your eyes reacted first, it could be that you are allergic to the fragrance. Are you aware of any allergies you might have?
Be Happy!

Type:2b/3ab?
Texture:Medium/fine
Porosity:Normal
Elasticity:Normal

Experimenting with too many products to name here. All this great info keeps my head spinning.