Hi Alex,
Your pain could be coming from the disc bulge. Just because it is small, does not mean it is not causing your pain.
Each of us are individuals and how are body responds to various things is individual to each of us.
A small disc bulge may not cause any problem for some people, and have others doubled over in pain.
What really needs to be done is to determine if that disc bulge is the cause.
Has anyone suggested that you have a selective nerve block to the are where you have the disc bulge?
This could be very helpful to not only relieving some of your pain, but also in seeing if that is the cause of your pain?
They are not for someone with spine pain, least of all someone with a small disc bulge. The chances of your bulge staying small is all but none, if you try something like that.
can you tell us what bupa is?
Johneman, gave an excellent idea for you to try. It may or may not help you, but it is a safe and simple thing to try and if it doesn't work, it will not make things worse for you.
Good luck,
Fran