I'm 4 days into deca/sus/d-bol cycle and my quads and low back are so stiff and sore, I can hardly walk. I heard d-bol can cause the low back to hurt. I just injected both quads today as well. Could that be a factor?
Dbol is probably the cause unless you've had previous problems like this. Dbol and other compounds can cause un-natural pumps and muscle tightness to the point of pain. Winny even did this to my lower back. Stretching and rest will help.
if u are talking about sore legs and u injected the sust in your legs, then it is normal cause sust make most muscle hurt like hell unless u are used to it.
It could be kidneys pains caused by the D-Bol, up your water intake and start taking cranberry extract and that will help if it is kidneys. Legs may be still because of the massive D-Bol pumps or from the quad shots you are doing