Did one injection of Sust 250 in right glute on Thursday. Went well. Did another injection of Sust in left glute today. When I aspirated the normal clear fluid and little bubbles entered the syringe but I think I may have seen a tiny bit of blood. If I had hit a blood vessle there would have been alot of blood right? Like I said it was just a tiny tiny bit. I injected anyway. If I did hit a vessle what can I expect to happen and when? It wasnt like a solid amount of blood either it looked like it was just a red tint mixed with the clear fluid.