The day after a migraine is starting to bother me more than the migraine itself

I’ve realised that I can almost plan around the actual migraine now, but the following day is impossible to predict. Sometimes the pain is gone yet I feel like my brain is running at 50% — slow thinking, weird fatigue, no concentration and just generally not myself. That “after” period has caused me more problems at work lately than the attack itself. Does anyone else get a very distinct post-migraine day, and have you found anything that makes it easier to function?