Is it normal to feel like this in early recovery?

I just got off of a 5-6 year opiate habit. My habit went from starting off with oxycontin's to heroin to fyntenol patches. I was orally using the patches rather than using them like normal people would do for pain. When using these last few years I dreamed of going back to the hard working driven person that I use to be. My main bottom was just seeing all the hurt that I have caused family and friends and I just can't do that to people no more. I have detoxed on my own and in places so much that I have almost become a pro at it. For me, it's after the detox that is the hardest for me. Before using life was like a big playground to me. I use to want to try all different things out and I set goals e.t.c. Now after I detox nothing seems to be of interest to me. I find myself with this big not in my stomach everywhere I go of nervous anxiety. The anxiety leads to isolating because I just give in because I can't deal. Sometimes Ill go to go shopping and will be in a good mood, than halfway there I'll be telling myself I cant do it. Im always trying to find out what is wrong with me. I use to just look forward to working towards something I want out of life and now Im so depressed I cant even put a finger on where to start. I just want to feel happy. Ive tried to yze the na program to the T trying to figure out what to think about to make me happy. Now Im not even sure if I should look towards things like a job e.t.c. to make me happy because they are always talking about not needing anything but what we have. Is this just an early phase of recovery or am I damaged goods. Will this feeling of impending dume reside so I dont have to dig for happiness? Tnks