Increased Pain with THC Use?

For the last 15 years I’ve experienced amplified paid when using marijuana in any form… various strains, joints, edibles, vape, drops — learned I can tolerate up to 2.5mg of an edible (“dose” is 10mg). I’ve asked all my docs, friends, forums, and nobody has ever heard of this except one person in Canada who said they’ve seen material on it caused by hypersensitive nerves, but I haven’t been able to find anything online about it. Now that I have a fibromyalgia diagnosis, I’m wondering if this is possibly the cause.
I don’t partake any more, not worth it, but have always been so curious why this thing I used to be perfectly fine with now gives me the exact opposite effect it’s supposed to.
Have any of you experienced this?