I had something similar sounding last autumn
“pain” never became significant but I did no riding for 3 weeks anyway. Still a little bit noticeable but no pain
..then I did a really small jump/long step over a puddle while walking away from work
I swear I even heard a soft “pop” when it went and christ it hurt – took me 20 minutes to get to the car, 600 yards away
I assumed I’d snapped a tendon or something and was all set for a loooong recovery. By day 3 it was back down to very painful and I was limping around the house again
had some physio a week or so later; first time for me. By then it wasn’t really painful, just uncomfortable. Physio hurt a bit but mostly in other parts of my legs where there were very obvious hotspots.
Pain fully gone within about 3 weeks. Had a couple more physio sessions afterwards and no recurrence
No idea what it was, and mine was clearly fairly trivial but, Christ, it hurt. I wondered if I’d popped a baker’s cyst – still do