Writing up UI designed by a designer who doesn't understand my domain's interface guidelines, reexplaining how my software works to the product person during every product meeting, trudging along under leadership that doesn't understand the costs of all the manual things I'm not being empowered to automate and not having new features to show off every 2 weeks is what is making me feel like I'm burnt out.
I've been at the opposite end of things. I've had to sprint through terminals to catch flight after an incredibly slow deployment at a hotel like out of a nail-biting Hollywood thriller. I've crunched through long days before critical events, and then crunched even longer days to work through all the issues we came across afterwards. But these things usually resulted in satisfaction more than frustration.
My symptoms have been physical too. I've vomited before going into work at least a dozen times. I had to start embracing it to get on with my day. Thankfully this is no longer an issue for myself but I couldn't even tell you what had changed to start preventing that.