When I first got diagnosed and medicated I pretty quickly burned myself out, too. When you spend your whole life basically unable to work in the way you want to, it can be intoxicating to finally be productive.
It's genuinely hard to describe how good it feels. But it's important to slow down and objectively evaluate how much work and time you are putting in, because burn-out is always a risk.
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Edit to add - memory holes are also a pretty common effect of high stress levels. If you really got into work and doubled or tripled down on your effort once you got medicated it could easily be causing some of the effects you are experiencing.
It's genuinely hard to describe how good it feels. But it's important to slow down and objectively evaluate how much work and time you are putting in, because burn-out is always a risk.
---
Edit to add - memory holes are also a pretty common effect of high stress levels. If you really got into work and doubled or tripled down on your effort once you got medicated it could easily be causing some of the effects you are experiencing.