A short summary of my recent medical history:
--I had a trigger finger release in my right ring finger 3.5 months ago and it has apparently triggered (ha) DD in that finger. The incision site hardened into a nodule and I have visible cording in the palm with some (minimal) contracture. I have an in-person appointment with that surgeon in three weeks for a formal diagnosis but via telehealth he thinks this is what's happening.
--I was attacked by a dog 9 months ago and had numerous crushing bites (but no fractures) to the knuckles of the ring finger and pinkie on my left hand. Despite nine months of 2x/week occupational therapy those fingers continue to have very limited range of motion. Everyone I've consulted is somewhat baffled by the severity of impairment compared to the severity of the injury. The fingers can be made to flex fully after a long session of therapy but two minutes later go back to being inflexible.
--In 2020 I developed frozen shoulder after a fall. It did not resolve after six months of therapy and I ended up having surgery for it.

Am I right in thinking that these events are all connected and that for some reason I have a predisposition to fibrosis? And if so, what can I do with this information? I found a radiotherapy doctor (from your list) in my area and am working on getting an appointment with him but I'm equally concerned with the dog bite hand and wonder if your collective wisdom might point me in a useful direction for addressing both problems.