I had this problem once before when I did my quad. This is my first cycle.
Week 1 - Both Glutes
Week 2 - Quads
Week 3 - Glutes
Week 4 - Quads
Week 5 - Delts
I did my left delt and it was just a little sore around the injection area, after i did my right one, my bicep is sore now (2 days later) not the injection site. I did arms the other day with the soreness and i can still max out and the pain goes away after the second or third rep, but its just an annoying feeling that ive had for a few days.
I had this problem once before when i did my quad injection on week 4, the site where i injected didnt hurt, but my knee and the muscle right where it touches the knee was SOOOO sore. Fluid built up around my knee and i had limited range of motion.
Is this an infection? Or just virgin muscle soreness? it just seems weird that I am getting sore in the muscles below where i inject.