Hey I just did my frist stab of eq 300mg/1ml in my thigh. I was just wondering if the muscle should be sore after the frist shot? Also are there side effects from injecting into a blood vessel. I was reading articles on injecting and blood vessels but it didn't say anything about it being harmful. Thanx oh ya I'm also on 50mg on winny everyday. Anyone have suggestions on creatine I could take that really helps.