Couple things on my mind here. 1) the contaminant in the vial. Obviously thats an issue. Quality control issue. Whats the quality like outside the contaminants that you can see with the naked eye. 2) the fact that you can pin this with a slin pin suggests that it is ethyl oleate. Atleast most likely. Not everyone tolerates ethyl oleate well. Some have an allergic reaction that would look and sound like your side effects. 3) can't remember 3 now. I find that, from what I've seen, a large majority of folks tolerate EO perfectly fine. I brew my gear with 100% EO. Absolutely no discomfort at all by me and all my friends except one. Now, the one that had discomfort was a first time user and pinned 3ml in one site all at once which could have been his problem. Imo, it would serve you well to find another product that is not EO based and try that. It may not be the prop Ester at all. This is what I would do so you don't waste 2 vials of gear. You can get some test e and mix half a ml each and pin that eod. Obviously test e without EO. Use that prop as a kickstart. The test e will dilute your prop and hopefully remedy your problem. Once prop is gone continue the test e 1ml e4d. See hoe that works.