I'm on my 3rd bottle of Cypionate for my current cycle, and this bottle seems to have a much thicker oil. The first injection I did into my glute hurt for 4 days (normally it doesn't hurt more than 4 hours). On top of that, it takes at least twice as long to draw in to the syringe. Is this normal? The expiration date on the bottle is 07/2009, so I have to assume it's still good. Has this happened to anyone else? If I can bear the pain should I just continue to go with it? (only 5 more injections). Or do you think there might be a problem and I should just buck up and buy another bottle?