The next day had a chiropractor treat it and shoulder was fine. $25 with coupon. Funny part is, as it was new insurance, I spent over 30 minutes with insurance rep in advance on phone going over options and trying to get an idea of likely costs.
When I had a heart problem and no insurance, we called providers all over town (Minneapolis) to try to get prices in advance. Most would only give estimates over a wide range. Some flat out said it was there policy to not give estimates. Eventually found a cardiologist who worked basically free ($30 plus donation). I bought a Kardio to record my own ECG so I can have more data to improve my communication with cardiologists, who are (understandably) a bit alarmist about what can go wrong and tend to err on the side of (expensive) caution without sufficient data.
Feels like a broken system.