Guys I'm going back on prop now that I have my anxiety in check. I had used 3cc off my 20ml vial and I want to know if the air pumped into the vial before could have caused the oil to go bad over the past few months? I already injected last night in the quad and its a little sore today but nothing bad...actually less painful then delt shots last time. I just want to know if there is more risk using the rest of that vial.