You dont get a fever until it gets BAD. If it keeps getting warmer get to the doctor. Monday should be fine. Next time inject SLOW. When you inject FAST you are blowing the juice into the muscle causing a bruise and that why it gets sore. It's not like it's wide open in there or a porous sponge. Give it time to absorb and move around. I typically take over 1 min per CC and never get sore. Do the math, 1min to inject vs no pain or inject in 10 sec and 2+ days of pain.