Ok normally when I do an injection sometimes I get sore from it and sometimes I dont. The pain is never anything unbearable but it usually takes about 24 hours for me to develop a noticeable soreness. Well last night I injected 1/2 cc of sust into my shoulder before I went to bed and when I woke up this morning i'm already noticeably sore. It doesn't look like it's infected, you can't even tell I did an injection there by looking at it. Is it normal to get sore this quick or did I do something wrong?