Thanks for writing in.
Severe ripping pain in upper back most characteristically reminds us of severe condition - emergency condition called aortic dissection
But in your case as it is been going on over 2 weeks and symptoms appear on movement; it indicates mainly of musculoskeletal problem.
1] Spinal disc herniation
can cause similar symptoms.
due to heavy exercise.
3] Muscular injury
like small tears in fibres also in heavy exercise.
I would recommend you to get chest X-ray done as soon as possible to come to any conclusion. I hope I have answered your query. In case of any doubt, revert back please.