Hi there and welcome to the forum.
I'm one of those that went from pills to subs for a short period of time. I did it ALL wrong....but have since learned a lot from this forum and by educating myself. So let me share this conversion chart with you that will show you how much sub (bupe) is equivalent to how much oxycodone.
http://www.medhelp.org/user_journals/show/18499/Conversion-table-other-drugs-equivalent-to-sub
As you can see, approx. 1.2 mg of bupe (sub) is equivalent to 20 mg of oxycodone....so if you are on 4 mgs of subs....you are actually taking the equivalent of 80 mg of oxys which is more than you were taking when you went into detox. Subs are a TOTALLY synthetic opioid and much stronger than fast acting oxycodone....so, in my humble opinion....you are on too much suboxone. How long are you planning on taking the sub and have they discussed how they will wean you off of it?
I was put on WAY too much sub myself....I was sicker than a dog.....a zombie...I was only on 100 mg of hydos when I quit and they put me on 16 mg of subs which is equivalent to 480 mg of hydo!!!!!!!!!!!!!!!! No frickin wonder, eh?
I'd talk to the dr that prescribed the sub and see about lowering your dose and discussing a fast taper plan.....at 60 mg a day of oxycodone....you surely don't need a sub habit.....cause then you will have to w/draw from that too, and it's MUCH harder than fast acting oxys.
Best wishes....and keep us posted, ok?