On what protocol?
This is because you feel the propinate as soon as you inject it, it is very fast acting. So what you felt is highly logical. On cypionate everything will happen much more slow. Also a great deal with the propinate is made with crappy oil, even the pharmaceutical and a lot of people have reactions from it.
If you have issues with aromatization you can try enanthate but give it enough time. In other forums I’ve also read reports that it aromatizes less the cypionate, nobody seems to know why. My dealer is also on the same opinion, this is what his clients reported to him.