Ultracet and hard time

I have been taking ultracet for a year now,( off and on) and it makes me feel alive, everything is clearer I'm more socialable, I have more energy. It was precribed to me for back pain but it helps with other pains I suffer from also.
I know that it's wrong to take it just to feel " normal " but to me it's better than any anti depression drug I've ever taken.
The side effects; when I'm " coming down "from them I get grouchy, and I start getting depressed because I like the way they make me feel and now that feeling is waring off. I could take another one but I limit myself to 2-3 a day max
Is it so wrong to want to feel like a " normal " person, to feel full of energy, to enjoy talking to people, to want to do things beside sitting on the couch all day watching mindless TV.
When I stop taking Ultracet I have a hard time sleeping, my body feels old, I feel exhausted, and I don't feel like doing anything.

Hi my mother-in-law has been taking Ultracet for quite some time now for a disc disorder. She also take neurontin. Anyway, she has been having chest pains and heart palpitations. The palpitiations can be seen on an EKG but it doesn't mean anything bad. She is having a hard time sleeping because of this pain. She has had ever test possible for heart and an MRI of her abdominal region. Everything came back fine. So I started reading about her meds and found out that Ultracet can cause chest pains. I was wondering if anyone has had this same experience, chest pains. She doesn't take her meds like she should. So could her taking the Ultracet for such a long period and then she takes one, it wears off, could that cause her chest pain? Any help would be appreciated. Thanks