How much meth have you taken? Because if you've been redosing, that explains why it's been multiple days.
As for hyperfocus, common and almost inevitable effect of amphetamines, even adderall, especially when you take a higher dose of amphetamines.
If its affecting your work, it might be time to consider a break. Or at least lower dosages.
You should be down quite a bit. This is very subjective topic that has numerous possibilities and outcomes. It sounds that the flow of GABA has been interrupted in your head. I don't know your history, but common GABAergics usually in a low combination is enough to get things working. Dose conservative and have someone check you out.
If we are way past all of that, stay hydrated and consider seeing a doctor.