I was using oxycodone 30 mgs everyday for about 4 yrs

I was using oxycodone 30 mgs everyday for about 4 yrs and would do 5 to 8 a day... just was fed up with it...tried stopping a few times and it was difficult.. so I tried the sub taper for a 6 day period. Started on Monday and finished on Saturday. and its been 3 days wo anything now... just have mild chills,back ache, lack of motivation and extremly tired. Oh and not to mention the emotional rollercoaster of my mental state. Just asking if this will get any better??? Each day I feel it does but then again can't tell