Hello Julie glad your fence will be fixed,
Before I was able to even put a name on it, I must admit how you describe it, its a lot like how I would try to desribe it, It wasnt till I saw Barbs comments on draw a line from front to back and the pain shot straight through and down and etc.....
when I saw that I realized that was how i described it to my neuro, along with the tightness and feel like someone is sitting on my chest and every breath can be a labored issue, I hope some answer comes your way, I can only imagine the annoyance of having these SX, yet not being dx'ed
hang in there hope you also get to feeling better
History doesn't repeat itself, but it does rhyme.............................Mark Twain