Went to the doc...it turned out not to be an infection. I used a slin pin and it was too shallow. All the juice leaked out inbetween the muscle and fat causing the bruiseing and swelling leading to a massive immune response. My leg is swollen and and purple all the way down to my ankle. Hurts like hell! Even tho I did a clean injection, it probably wasn't a good idea to use a slin pin in that spot.
Good you got it straight. Indeed using a slin pin on the quad isn't the smartest idea unless one is verrry lean. I had some shit that looked just like what you got back in 2005. It was the first time I did a pec shot, and the last. Started to turn black and blue next day and stayed that way for 3 weeks before it started to dissipate.The bruising went from my mid pec out all the way down my delt and bicep- looked exactly like a severe pec tear. Doc said it was a hematoma - said the needle knicked a vein and it just kept bleeding inside. Btw to cover my ass, I told him that my gf's 8 y.o daughter was playing pin the tail on the donkey at her bday party and she fell on me while I was sitting down and the pin went into my chest.