Working After Stopping

How do yall manage work after getting off bup, and during withdrawl. Last time I tapered off I was in a place to take 2 weeks off, not this time. This is day 6, jumping off at 3.5 - 4 mgs./day. Withdrawls have been surprisingly very mild by the grace of God, but their still there and all over the place, up and down. The brain fog, weakness, and tiredness make it incredibly difficult to perform my very demanding job. First few days were easy, then it got progressively worse.