Guys I injected 250 mg test E 4 days ago today, it hurt immediately and has been sore but today it is killing me. There is a big knot in my arm, it hurts to move it above my head really bad and just hurts over all really, and it's also red in the area like there's a fever or something... Someone please shed some light.. Is this serious, should I do anything, and if it's not serious what can I do to get the swelling down because this shit hurts.