broken tib and fib in 2000 12 years later

hi all i broke my tib and fib in 2000 bike accident was on crutches for 2 years had to have 3 opp's as i got staffacocas infection in there and had antibiotic beads put in around my bone got back up on my feet in 2002 though all good in the end . in 2005 had my screws removed 2 ankle 2 in knee as they was giving me gip . i still have the pin in the bone and now in 2012 this winter where i broke my leg in that same spot i'm getting swelling and and throbbing but when i rest after days work its fine again , i've been active running etc since 2005 the more running i did the better my bone felt with no pain , this year has to stop running due to bad back so i didn't not run at all this winter just seems to have got worse . if i have pin removed will the pain go on that point where i'm feeling it, right on my old break . don't no what to do tried running again and it hurts to much , i thought i could jog it off like i did back in 2005 . i\'m 42 so not sure if its just me getting old and expect pain ? i feel like i want to keep running to see if the pain will go again like before but i'm scared now as they might be something nasty going on in there. also where i have the break i still have like a golf ball of bone around the break is that normal any ideas thanks guys