fern ,
I think a lot of it is that we have different levels of injury and differing compression {main problem} areas.
vascular vs nerve or both
plus -
scalene vs pec minor vs top rib vs clavicle and of course any extra c rib if present.

and for me the minor c spine/t spine stuff is what gets bothered by the jump/running movements.

just a thought too- if the lymph glands are slow or blocked any increase in blood flow will cause swelling from that issue.
just my own theory on that though.