I have some amps from a year ago and once they sit around you really have to shake them to get them mixed together. You can turn it upside down and it looks clumpy and sticks everywhere. The ones I just got will totally seperate and the water is real clear once they do. It is not real sticky or clumpy, it will just run down the sides when you turn it. All I know is the new ones hurt for days after I inject. Do you think there is something wrong w/ one of them?