I'd just leave them til there ready to fall off, pruning alot of leaves all at once may stress her out even more. What was the pH going in and coming out?
I've never used those testing papers and don't know how reliable they are. A pH pen and a soil pH meter is 2 things worth investing in.
yup... very highly reccomened... get a good ph meter (Hannah)
soil meter can be cheap... try amazon... rapditest makes a 4 in 1... ph, soil, fertility, moisture, light