Hello melrose
How tall are your impatiens? Are they at the tiny stage?
Are they a darker green than normal? What type of impatiens are they? Could you post a picture of them?
Hope you can figure out the problem.

The impatiens are white blitz and they are about 3" tall. I parts with the deformed curly small leaves probably are a little darker green. I wouldn't be able to take a picture until tomorrow night because they are in an outside greenhouse and it's dark now.

Do you have flowers? I was over fertilizing my impatiens at first and while the leaves and stalks grew like crazy (and a little curly), the flower buds would fall off and not bloom. I rinsed them with water and saw improvement within 2 days. I think the key is rinsing away the fertilizer.

Never use full strength fertilizer on anything every time you water. Hello! Read the directions. Impatiens don't need much fertilizer anyway. A 1/4 strength monthly is all mine get with a light foliar misting in between.