Bubble on top of foot after runing (not blister)

[DenisJ]

its very hard for me to run because i get really bad shin splits, so intense that i can't even stand on my feet after. So i tried running through the pain, all i can do is 10 minutes (1 mile), after 5 straight days of running i noticed this bubble.

http://www.mypicx.com/uploadimg/5077939 ... 2010_1.jpg
http://www.mypicx.com/uploadimg/1363976 ... 2010_2.jpg

Its only noticeable if i bend my toes up. If i extend my foot so my leg is straight you pretty much cant see it aside from a slightly blueish color. There is virtually no pain, at least on in the area where the bubble is. The bubble is soft.

I kept running thinking it'll go away but its still there. I do have pain in my leg, a different kind of pain then shin splits, its more precise and seems right in the middle of my shin/bone and a little in the knee even. Its definitely more intense in my right foot (the one with the bubble) then my left. But there is only pain when running/jumping. Sometimes I slightly feel it when walking down the stairs but its very light, maybe its even in my head.

Help.

[Yena H Do, DPM]

the bubble may be a cyst/ganglion.  try having it aspirated by a podiatrist to sample what this  may be

[DenisJ]

http://www.mypicx.com/uploadimg/507793918_05302010_1.jpg
http://www.mypicx.com/uploadimg/1363976029_05302010_2.jpg