I've been homebrewing for a couple of years and haven't had any problems with test flu, except my first cycle that was UG lab gear.
Halfway through my current cycle, 350mg sustanon, 350mg of Primo per week. I mixed up a new batch of sustanon powder from my same source, same recipe and other ingrediants. With this fresh stuff I get seriously bad test flu for the next 2 days after each injection. This has happened for the last 3 weeks, like clockwork after injecting the test.
Can you still get test flu from legit, pharma/medical grade testosterone?