If you have a problem with a disc, it's a good bet that chiropractic manipulation will make things far worse than they already are.
Massage isn't going to help either, unless it is done with an ultrasound machine and a well trained physical therapist.
The bulging disc may or may not be causing your pain and the interpretation of "no visible nerve impingement" is just an opinion by whoever read it.
In other words, this person did not see any problem with the nerves, but it is quite possible that someone else would.
I had that happen when getting other opinions before my spinal surgery in 2006. 2 other spine surgeons told me there was nothing wrong and no nerve problems being compressed.
So much for their opinions, as 12 hours before my spinal decompression, the nerves where so badly compressed I lost total bladder control. I regained full control within 2 hours after the surgery.
Physical therapy may give you some relief, as it would help to strengthen your core muscles and help you to stand properly, move properly and give you exercises to continue with.
You made no mention as to who ordered the MRI, who read it and who gave you the orders for PT as well.
What you do need is an evaluation with a well qualified spinal surgeon. If you have already seen one, that is good. Give the PT a try and if that doesn't work, you will need to be further evaluated by either the spine surgeon you are seeing or with one then.
If it is suggested that you should have spinal surgery, please, please get several other opinions before making that decision.
In the meantime, you might want to try moist heat to help ease some of your pain.
A simple way to make a nice moist heat pad is the old "rice sock."
Fill a long cotton tube sock with the cheapest white rice you can find in the store. DO NOT USE INSTANT RICE.
Fill the sock between half and 2/3 full of the rice and then tie a not in the open end.
Place in microwave and heat on high for about 90 seconds. Take out of the microwave and lay flat on a hand towel. spread the rice out the length of the sock and wrap in the hand towel and place where your pain is. If the rice sock is to hot for you, let it cool a bit and then place where your pain is.
But please, stay away from chiropractors, message unless it is with a trained physical therapist and acupuncture. Follow the docs directions and the physical therapist.
Good luck and let us know how you are doing.
Fran