OxyContin Severe Mood Swings, L5 S1, L4, Couple Times, Hard Time

I have been taking 15mg of Oxycontin for about year now. I first injured my back about 7yrs ago. At the time i was just taking 5mg Percocets a couple times a day. but it really didn't do much for me. I have tried for as long as i could to not take Oxy, but 10mg of Percocet doesn't do much for you when you have been on them for years. I have the L3-L4,L4-L5an L5-S1 all herniated and degenerated. I have more recently noticed some real changes in my personality. Severe mood swings, i find myself just activated and frustrated all the time. I have really bad sleep habits. hard time getting to sleep and staying a sleep. then when i do i don't want to get out of bed. I just don't feel like myself anymore and i was wondering if anyone else has had the same feelings or experiences. thanks