Hey guys im in the beginning of week 5 of my test/deca. So far, i have gained 8 lbs as of end of week 4....for the last the 2 nights i have not been able to sleep...though i felt tired during evening but i went to the gym instead n did my workout anywho i felt dead afterwards and took a cool shower couple of hours b4 bed time...but this is the second day in a row its happened...I cant fall asleep during night. Why is this happenning???...is this a side effect?