My inflate/deflate brush simply won't work

My inflate/deflate brush will not work. It randomly stopped working while I was using it. Every other brush works, smooth, draw, anything that adds polygons works. I’m using dynamic topology, and I’ve also noticed that now all of my brushes work opposite and add when they’re supposed to subtract and vice versa.

Any advice?

Nvm, figured out what my problem was. I’m pretty sure I had “front faces only” checked, easy fix lol.