Hamstring Injury Recuperation - Days 4 to 6

I've been at work the last 3 days and while the hamstring has been causing me occassional bouts of painful cramps and a fair bit of shifting around to try to get comfortable, I've been able to get work done. Today I drove into Hamilton and back (4 hours on the road) and while there was some pain, it was definitely bearable. I'd keep the car in cruise control most of the time on the highway -- but keep my right leg ready to hit the brakes if necessary. One thing that is different is that I've been getting many more leg cramps in my _lower_ leg in the past couple of days -- both in the right and left legs. Must be something to do with the tension with my hamstring in my injured leg, I guess, although it really doesn't make a lot of sense to me.