im taking 100mg EOD Tren, 750mg wk of Sust.. has anyone been on a cycle like this and have their cardio start sucking?? I usually run about 3-4 miles EOD and before my legs could handle it but now i get 300 yards and my calves start cramping and ankles get sore. I drink about 7 quarts of water a day so i know its not a hydration problem. heat maybe, if not the tren??