airbabygurl: Unfortunately, there is a lot of truth in your post. The DoD needs to change the rating criteria for back issues considering the severity of issues that can happen with back injuries. I, like you, had just under two years in the Army and was separated from Active Duty with 10% severance, for a back injury. This back injury was just like yours---sitting, standing, walking further than 50ft, running, you name it, it bothers me. However, the only answer I was ever given was-DDD. Therefore, I wasn't rated well, and with a horrible reading of my MRI I couldn't prove much to fight it. The VA would wind up finding a BUNCH of issues wrong with my spine, once I returned home.
The fortunate (for your case, not you personally) is that you have some clearly defined issues with the spondy, DDD, disc bulging, pinched nerves all showing up on the MRI (just guessing it was an MRI that revealed this). That will have some weight with your case. The biggest thing that will count will be your range of motion (ROM). If you check the VASRD link on this site you will see what kind of rating you could get. There is a possiblity of you being rated according to incapacitating episodes---which would mean how much "bed rest" ordered by your docs you have had in the course of a year. This is where the better ratings come from, but usually overlooked.
Now, from first hand experience the VA will rate you better for your injuries. Not saying that it will be easy, and you will probably have to appeal to get what you deserve, but remember the VA will rate for all conditions that came about on active duty service. So, if you have experienced depression, irritable bowel habits, knee pains, etc., the VA will rate those along with your back injury(ies). So, remember when you get to that phase, to list ALL conditions.
Lastly, make sure that your NARSUM describes the pain in full, states that the multitude of therapies are not helping, the list of meds you are on, EVERYTHING. I do not know what your ROM is, but make sure you do-and make sure it is in the NARSUM. Also, another thing to remember is that the examining doctor is supposed to do a ROM three times to account for fatigue, weakness, etc.; then he/she is supposed to take an average of the three measurements. This is IMPORTANT. Oh-and all medical conditions you have experienced need to be placed on the NARSUM as well. DO NOT let them tell you (THEM being your PEBLO) that only the unfitting condition is to be placed on there.
Make sure you fight for what is yours. If you do not feel it is right, do not sign anything, APPEAL. If you need to, retain counsel through JAG or an outside attorney. This WILL affect the rest of your life! DO it RIGHT! I wished I would've known what I know now! Remember, you can always come on here and ask questions-and feel free. Strive for the 30% at least----it doesn't hurt to appeal anything under 30%, you never know. Good luck and keep us informed. Wish you lots of luck and look forward to hearing back.
V/R
Nick