If you find the breath sounds in Smurth's Dynamic Hud headache inducing, but also immersive, then this is the mod for you! It makes the breath sounds louder depending on how much stamina you have left.
If you are at full stamina, you will barely hear the breath sounds. As your stamina continues to decrease, the breath sounds get louder and louder until you are almost completely out of stamina, where the breath sounds are as loud as they were in the original mod.
This was made with Smurth's Dynamic Hud v.184.108.40.206, but I imagine it'll work fine with older versions.
Thank you Smurth and the rest of the team that made the mod, I cannot go into the zone without it!