I have always prided myself in my strong immune system, 2 week into new cycle Test E 300mgx2week and I have come down with a flu? No big deal right, its just a cold, but is it the STEROIDS causing my immune system to weaken and making me more susecptable to be sick? I have been taking some supplements, like D,E, joint stuff, zinc, B complex and of course my whey shakes. Should I be taking C? or just walk around with hand sanitizer at work lol.