Welcome to the chronic pain forum of Healing Well. I'm so sorry you have to be here, but let's hope now that you have health insurance kicking in soon, you'll be able to get the needed tests, see needed specialists, and see what your options are for treatment.
Since I just lost my health insurance on June 30 (COBRA ended) I know what it's like. You're lucky you even can get a family doctor to see you without it! For the time being, I wouldn't worry about the percocet as long as you're taking them as prescribed.
There is a difference between dependence and addiction. We all develop a physical dependence to certain medications just because of how they work in the body. And what that means is that if you stop the medication, especially abruptly or without medical supervision, you will experience withdrawal symptoms, which sounds like what you're referring to. It does not mean you're an addict, which is different, as others have implied. As I said, if you're taking your meds as prescribed, don't worry about it for now. You will soon be able to see specialists, and depending on the diagnosis there may be a lot of other treatment options for you.
And when you're able to reduce or eliminate the percocet, you need to taper them under a doctor's supervision, but I wouldn't try doing this by yourself.
What kind of work will you be doing?
Again, welcome to the site.