There are definitely days we all have felt like this. Iv kinda been reverting back into a worse stutter over the last few years. Slowly at first but the last 6 months just really bad. But, I had a good 5 or 6 years where it was hardly noticeable. I have a job where meeting and talking to walk-in traffic is a must. I find here lately I'll just get that "fuck it" attitude about it all from mental exhaustion and literally not care, and that's when I stutter the least. Iv always said life's like a roller coaster with the up's and downs and when your up your up you don't think your ever gonna be down again, and when you down its never as bad as it seems. All the best to you though, my thoughts for what it's worth!!!