Prostaglandin D2 doesn’t provide enough for me to help you much, unfortunately. A quick review tells me other inflammatory markers would be more helpful.
Bummer. I understand why you wouldn’t chance another problem, though.
Especially is nobody is going to run any meaningful tests when it happens.
The problem is, not a doctor I have seen has even suggested further testing to see what other markers or things might show something. I KNOW the tests are out there.
But finding a doctor who is willing to think outside the box and investigate and explore?
Forget it.