Gmail usage stats

Hey everyone,
Does anyone know if there's a way to see how many emails I've actually replied to over the last three days? Does Gmail track that kind of thing somewhere, or am I out of luck...

Are there really that many of them that you can't even count them by hand?

Yeah, I keep my work and personal emails linked so everything lands in one inbox—makes life way easier to manage. If Google would just give us separate tabs for personal and work accounts, like they do for social media notifications, things would be perfect. Labels aren't really doing much for me... 🙂

Anyway, we're dealing with a glitch on our site right now and users are hitting us with the exact same question over and over. I need some solid stats so I can show the bosses and actually back up my requests for fixes and upgrades.

Can't you just filter out outbound emails coming from one specific address or something?

Not really sure what my options are here, so I'm tapping the experts 🙂 I'll give that a shot, thanks.