It seems like some moisture got in there .i had a 50 ml bottle of test cyp and tren e from an old sponsor that was given to me that was like that and I used both bottles until finished and didn't have any problems , it is still good .you can try heating it and see if that helps
Yep agree that cloudy test sounds like moisture, or it's crashing a bit. If that's true, heat should cure it.
Some gear does seem to change if we let it sit. Especially Tren. I've got a bottle of Tren A, used for one ML last cycle, so exposed to a little air. It and went from Golden to darker almost Brown. Im guessing it oxidized somewhat. Still gonna use it