hey bro,as someone who has the misfortune to be able to speek from experience(4 back surgerys),they,meaning the opiate in vicodin will slow your metabolism down and as I have found out it has a direct effect on test production,I am seeing a endocronoligist for my weight gain,not much just around the middle,but he the mD advised that the opiates that I am on percocet is stopping production,If you are only taking 2 a week you are not physically addicted probally psycologly,your body rids itself from from the opiate in 8to12 hours,so If you are only doing 2 a week your body(endorphins in the brain)is not relying on the drug,My bet is it is more of a recreational thing than anything,I know trying to deal with working out and pain its a bitch but you will feel alot better if you could use something like motrin or cut the hydrocodone out and just take tylenol.Vicodin is mode up of 500mg tylenol and 5mg of hydrocodone,good luck,If I can help further pm me.