I'm running gw and S4 from sarmssearch.com and feel the same way too. I've run the triple stack before, as well, from unique and felt the same way. I think it's because I'm shut down, quite frankly.
Sent from my SPH-L710 using EliteFitness
If gw especially isnt giving you more energy and endurance during cardio sessions, there is something very wrong! i mean its a outlawed substance cyclist's and runners were using because it so effective in this area.