[in addition to the shoulder, arm, neck, and shoulder blade pain.]

You could also be having muscle spasms in those combined areas.
The intercostal muscles between the ribs can be in spasm too.
https://duckduckgo.com/?q=intercosta...ms&t=canonical

Do you know what might have caused these symptoms for you?
Are you still doing that activity?
How long have you had this?

An expert/skilled PT or even an expert multi mode chiropractor should be able to do an indepth evaluation and suggest treatment.

I had severe spasms in all those areas and my chiro using multiple kinds of therapies, was able to resolve the worst of them in 8 sessions or so. I still had ongoing/chronic issues, so continued for quite a few years, by choice. My ins. covered it ,so no out of pocket.

I had very restricted range of upper body movements , a tightness in all my neck, shoulder and upper arm muscles, affected my breathing and a odd sort of vibration feeling in my chest.

I was not working, if you are working at a job that causes sx then it will take much longer to counter act those negative activities.