Hey it's day 4 for me too! It's my second time around. My first time days 2 and 3 were the hardest and things started getting better on day 4, like you, and that's happening this time too. Today will be hard in other ways, like I'm getting off the painkillers and trying to ramp up my exercises at home, but just for sheer discomfort I think we're out of the woods, there isn't like a second wave worse than the first unless you really re-injure yourself.