I do worry when I'm on and I rarely exceed 500mg plus the odd oral for a few weeks as a booster and do take time off and easy off on protein intake. When I was in my 20's I didn't care, now in my mid 30's I care, waiting on kidney blood test results next week before I make my next move.
I too, have had close friends sufffer severe consequences of gear, one caught prostate cancer at 28yrs of age was on Tren 600mg a week and 1mg test and soo much other stuff with GH and slin...etc. He strongly believes AAS did it and now is focused on MMA and off juice
2nd guy was diagnosed with leukemia, he was a GH fan and his battle is on-going.
3rd friend had a heart attack at 39, when I went to see him he told there 2 other guys admitted in the unit with him who were clearly AAS users, he became anti steroid use and was banned from a forum he was on...guess it hindered the sales of their inhouse source.
The above are guys I class as friends and known personally for many years. In this game if you're lukcy you might a hard lesson/ a warning e.g. some members here with their kidney scare...etc but sometimes life can cruel and you might not get a second chance to rectify your mistakes.