Warning: Bouncing while running may be hazardous to your health...

Throughout my pregnancy I walked at an incline for 40-50 minutes 5-6 times a week, because I was worried about running while being pregnant. Since I've had the baby I've tried to go a few times a week, but am lucky to get 2-3 times in (and it's with the baby, so it's always just walking). Well, this morning I decided I was going to make sure to leave the baby so I could try and run a little with the walking. So I fed the baby and then about an hour and half later, when he was asleep, left for a walk/jog. Have any of you tried running with DD boobs that are fairly full of milk???? (I HATE having such a big chest since being pregnant) Let's just say it is horrible. It's fairly painful, and completely uncomfortable. I could only run for a little bit at a time, and everytime I did run, I had my arms holding/supporting my chest as I ran. I'm sure that everyone who drove past me thought that I was retarded and didn't know how to run. I tried switching it up and only used one arm to support at times, but then it just looked like my other arm was lame. What am I suppose to do (I will definitely make sure that I go right after I feed next time, but what else?), how am I suppose to be able to do more than walk while I am nursing? This seriously sucks. I knew that nursing would take sacrafices, but I never thought that running would have to be one of them. Any suggestions or ideas? Anyone out there ever have to deal with this besides me? Please help!!!