Have you just tried an injection of 60mg of Toradol? Sometimes the docs make a cocktail and mix it with a bit of steroid material tho I do well just with the Toradol injectable. It's an Nsaid and even tho it's main action is antiinflammatory it acts very well to alleviate muscle spasms for me so maybe it would help with muscle tightness as well?
You were super active tho so if your bod is a bit beat up that makes sense to me
Good luck and hope the "tightness" wears off or you get it ablated off or whatever! Maria