Apparently the doctor you where seeing at the time of your original injury had no idea what she was looking at and couldn't understand what the radiologist reading meant.
You already had a bulging disc and spinal stenosis at the L4/L5 vertebrae. The disc bulge was already beginning to compress the nerves in the lateral recess and neural foramen area and bone narrowing in the foramen.
In other words the foramen area where the nerves go through the center of the vertebrae in your spine, in the L4/L5/L5/S1 area of your vertebrae had narrowed and there was compression on the nerves.
That is what was causing your pain then and no doubt the area has narrowed far more than it was before.
It is possible for a slipped disc to heal on it's own. Most of the time they do. What a slipped disc is simply the fluid that is inside the disc is leaking out and the fluid will irritate the nerves causing a burning, stinging type pain that you are feeling.
In time, the disc may or may not seal over and the pain will be gone.
What you do need is a course of physical therapy to help that disc heal. You need to learn core strengthening exercises to keep those core muscles strong and help prevent a repeat of the disc problem.
Sometimes the disc will not heal on it's own and you will need to have it surgically repaired and if it is caused by spinal stenosis, then the area of the stenosis needs to be enlarged so the nerves can be decompressed, the pressure removed from them.
In your case it sounds like you need the lateral recess area of your vertebrae widened as well as the foramen area.
That is surgery I have had twice and John above is having next month.
A disc does not just come out, but it bulges out as it flattens from loss of fluid.
The first thing that is needed is an MRI and consultation with a spine specialist. Whether surgery is indicated or a course of conservative treatment, which can be successful, depends on the findings on the MRI and how they match up with your symptoms.
The doctor that you saw with your first injury was not capable of taking you MRI and the findings and using it as a tool to help diagnose and treat you.
It is true, though millions of people are walking around with an MRI that looks just like yours and have no symptoms. Therefore nothing would be done to treat them. The key is using the MRI as a guide, part of the evaluation to diagnose the patient. Just because one person doesn't have symptoms with an MRI that looks like yours, doesn't mean that you or someone else would be the same.
The pain meds that you have been given and the muscle relaxants won't help you with the pain you are having from nerve compression. You need something like neurontin or lyrica to help relieve the pain. They are quite good at relieving nerve pain.
And yes, twisting and turning and moving can be quite painful with a disc problem.
You can try putting ice on the areas that hurt. Ice packs can help relieve some of the pain temporarily, and if that doesn't help, then moist heat may help.
Here's something easy to make for moist heat.
Take a long cotton tube sock and fill it about 1/2 to 2/3 full of the cheapest rice you can buy, but be sure you don't use instant or minute rice.
Tie a not in the open end of the sock and press the rice out along the sock to spread it out.
Heat it in a microwave oven for about 90 seconds. then wrap in a hand towel and place on the area that hurts. Be careful not to leave it on for more than 20 minutes at a time as you don't want to burn the area.
Those 2 ideas may help and let your doctor know that the meds you have are not working and you need something for nerve pain.
Good luck
Fran