Emerald - it's 250mg or 500mg, not ml.
You will have 1ml containing 250mg of testosterone +ester. ml being a liquid measurement, and mg being weight.
If you were doing half a litre of anything injectable at all I can pretty much guarantee you'd have noticed it by now
Jokes aside, 11 days in is too early to tell, and even though 250mg is a heck of a lot more then your body naturally produces (around 7-10mgs a day if I recall correctly), results are not going to be overly dramatic. If you still wanna take it slow, but also step it up a notch, try injecting every 5 days instead. If you up Testosterone you'll wanna start thinking about controlling estrogen though.
Also, get your diet in check ASAP, or you'll just be wasting test.
Good luck m8
/Maf