I sounds very much TOS like...

What kind of job/hobbies do you do? Repetitive, desk, hand/arm intensive?
Or even previous whiplash, sports injury, falls, hits, broken collar bone??
Overall upper body postures? Like head/shoulders forward or hunched?

It's often helpful to try to figure out why this started happening for you at this time.

The useful sticky threads will give you a solid start on TOS info/details & therapies.

Are you having any swelling or color changes with arms up vs down?

Yes, taking the pills with no phys therapy is just a cover up -the pills don't fix the problem. If you need then to be comfortable that's one thing. But some expert therapy is a good thing to try.