i usually shoot glutes, and get a lump but doesn't really bother me, i shot my right quad an it was abit dead for a day or 2, 2 days ago i shot 3ml in my left quad and it has blown up an has travelled down to my knee an is very sore an i am walkin with a limp, the injection site is ok but my knee is ver swollen an has a red circle on it. can someone advise me on wot this is an what to do about it please.