I understand the difficulty in allowing yourself rest, as well as the urge to try to push through your normal activities. However, in trying to keep up with your normal schedule, you are putting yourself at serious risk of making your condition worse and prolonging your recovery. Doing sprints is a very, very bad idea, and it sounds like your body is telling you this.

There are a number of meds out there for migraines, and hopefully your doctor can offer you some good suggestions--or refer you to someone who can.