Ok, bringing this back up looking for some advice. I've finally gotten back into running full time the past few weeks, going out almost every day after work. And I've actually been doing it in my Vibrams. I can finally run a mile (ex-XC runner who hasn't really done a whole lot in the 3 years since high school), but after that my calves get really tight, and today basically my entire left leg below the knee got really tight about a half mile in, so I stretched a bit and walked and tried it again and got about another quarter mile before it did it again.
Now I'm not sure if this is solely due to my inactivity in the past bit and me just getting back into it, or from the shoes since I only wear them while running (I don't think khakis and Five Fingers go together very well). Either way, does anyone have any advice? Am I just pushing it too hard? I'm icing whenever it hurts, though not quite to the ice bucket level like in XC.
I'll second what others have said. You're probably over doing it. Make sure you stay hydrated and keep your potassium and magnesium levels up.