cyp causing flu?

I am currently running test cyp only 400 mg/week. Im about 5 weeks in today, and I recently got the flu, ive heard several rumors about juice causing temporary illness due to the strain it puts on the body. Could this be a cause of it? Its really pissing me off because I dont have the appetite i need to grow at the moment. Also I notice no testicular atrophy yet, which is making me wonder if this shit is really underdosed.

Yes the Test can cause you to get flu like symtoms. It should subside in a week so just try and work thru it.
What kind of Cyp are you taking?