Greetings, sorry about the pain.
Not to worry, disc related to back pain is not a danger at all, just too much hype.
Try hamstring stretching, you can get video in YouTube. You will get 30% relief.
Next Steps
get to see physiotherapist specialised in posture correction and trigger point therapy and your problem is solved. it will take 2-3 weeks of treatment but continue as instructed by physio.
Health Tips
there is no danger to your dancing or IT job, if any doubts about the same do let me know.