headaches, ring and pinkie finger troubles- more possible TOS sx.
Not many drs are fully knowledgeable about TOS and may pooh pooh your questions about the possibility of it. So don't be surprised if they do that...

I would ask for a referral to a very advanced/ highly rated PT place and ask for them to do thorough evaluation for you.
They know how to do movement tests to find where your sx are coming from.
Sometimes it is worth mentioning TOS to them just to see what they say about it, might make them more aware of the possibles too...

I had the best luck with a very good chiropractor and some advanced physical therapists.
My RSI/TOS was caused by yrs of repetitive work as well as factors of hyper mobility, a minor car accident and concussion from a horse fall as a teenager.

You need to find someone with an open mind and the knowledge to sort it all out for you.