I have never been a fan of medication for LOTS of reasons. I've done research for almost 30 years and I have seen more "harm" and side effects, toxic individuals, etc as a result of them, vs solving the problem. Medication MASKS SYMPTOMS. I've written several articles on alterntives to medication, as wel. There ARE alterantives.
Since you live in the midwest are we are dealing with such "beautiful" weather (which I'm SURE doesn't help the depression!), you might look into St. John's Wort.
I've taken it a couple of times and it REALLY has helped. The precaution with St. John's is that it makes you more sun sensitive. Again, since we have NO problem with those kinds of issues, you should be fine.
My experience is that it made my moods and behviors MUCH more stable and lots less swinging one way or the other. In addition, how much WATER are you drinking? Dehydration can make you sluggish AND you need to realize that water is essential for joint health, which includes your spine.
I'm also a posture alignment and pain management specialist who's been working with two individuals with the SAME symptoms as you have - the burning pain in the mid back region. We have SOLVED the issues. Both cases were a result of misalignment and rotation.
The chiropractor may help temporarily, but until you CHANGE THE patterns that are causing the pain, it will continue to come back. You need to re-educate muscles. If you do, then you'll STOP the compensation patterns and the pain will go away.
Go to www.EGOSCUE.com AND get yourself a copy of PAIN FREE by Pete Egoscue and go to the BACK section. It is VERY user friendly!! It give you explanations AND pictures. You should be able to find a good used copy on Amazon. I don't know of any therapists in Ohio, but it would be worth checking into. People notice a difference the FIRST time!!
Might want to take some time and read PURPOSE DRIVEN LIFE by Rick Warren. Sounds like you need to find something you are passionate about and spend some time doing it.