I had an issue with refilling my prescription because my physical was out of date so I ran out of my Test C just over 2 weeks ago. I already feel like crap and at first I thought it was just in my head as I've been tired for the past 2 days and just lacked energy. I ended up working out tonight and it was almost impossible. Thank god I got it refilled and will have it on Friday so I can start feeling human again. This is a great reminder of how important it is to be on forever. Needless to say I will never slack again with regards to staying on top of things.