So many specialists and so many diagnostic procedures but not enough on healing. This is a strength and also a weakness of medical practise.
I dont know what is rheumatic work out. I hope this workout has not aggravated your injury. For herniated dics patients really need specialised exercises. Strictly no flexion exercises like bending forward. Only extension exercises allowed. The idea is to centralise the protrusion and stablisation of lumbar region first. Look for a physio therapist familiar with the mckenzie method
you should invest equivalent amount of time/money to look for relief/cure from therapists as you have spend on all the medical specialists and their high tech machines. I mean like physio, alexander method for postures, lifestyle changes, nutrition and foods to avoid, alternative medicine, detox plans, pain management techniques, chiropractor etc etc. Doctors and their over specilisations are no good for degenerative diseases unless you are talking about surgery. Dont under estimate your body's ability to heal itself if you do the right things to take care of it.