Yes I have felt like this before from both chronic pain from fibromyalgia and from depression as well. Try to string a couple of good nights sleep together with your new addition of ambien and see if that improves things. If not, don't wait, go to the doctor and see if it is your depression. Are you on antidepressants now?? If so, have they been working effectively lately?? You have to investigate these things so that you get yourself moving again.
Please continue to post and let us know how you are doing. I will look for you.
Moderator Chronic Pain
Believe in yourself. Be kind to fellow humans and animals. Take time to smell the flowers and the coffee.
And by all means, when you are down, ask me for help. I will be there.