Have you tried nutrient or energiser?
In short, it is believed that my recipe had too many grains that created a highly acidic stout. It's an extract recipe with most of the specialty grains that are acidic (dark mostly). So yeast nutrient wouldn't work and they said not to bother with energizer. I brewed this on 10/12. Anyway, the chalk should help with the pH. If it doesn't then I need to either just accept it or dump it. I don't think it's a dumper. My calculations said 36.5 g of chalk, I went with 33 g just in case I was wrong about the total amount of liquid.
Drinking more water.