I just started testosterone replacement therapy (TRT) and took my first 5 ml injection 3 days ago and it seems like my libido has increased a little. It seems like it is too soon to notice a difference, is this just in my head? Also, when they were givig me my test prescription I saw them pull it out of a refrigerator and I asked if I was supposed to keep it in there and they told me yes. But on the prescription bottle it has a sticker that says "do not refrigerate". So should I or should I not keep it in the refrigerator?