Hi there. I understand your frustration but you are going to have to accept the fact that there are not always "quick fixes" for a disc protusion that takes often a while to develop and a while to mend. There are many well qualified physios around in Australia, doing Mackenzie or other manual therapies and because people are people and not cars we can't fix you like a car.
Did you concentrate or notice the presence or absence of a shift before all this started? Although shift and painful shift correction is/can be a part of a back problem it is also possible that you were asymetrical beforehand.
You don't say what degree of protusion you had. More stuff bulging means more time maybe to resolve. It is normal to have some pain depending on what you do afterwards. The other protrusion you say came from bed rest did very likely not just come from bed rest, for some reason it's probably been developing for a while. Many people have protrusions and are without symptoms.....until something starts it off. Are you still sitting for 14 hours at a time? Are you able to or doing enough walking in addition to exercises prescribed by your physio? Are you mixing physio and chiro treatments at the same time or just physio? You have had some sound advice here by the answers I've seen, Mackenzie can be excellent for helping you to help yourself and includes dealing with shift correction. Once the back is improving, postural correction for your every day life, sensible exercises and sport advice takes you further. Patience is essential! I'm sure there will be improvement so hang in there!