Try this article. It does mention anti-phosphalipid antibodies in the article.
I don't have APA, unless it has crept up since last blood testing.
It does mention tension headaches, too. I was very stressed after my diagnosis.
Lupus, Fibromyalgia, Glaucoma, Asthma, Hypothyriodism, Sleep Apnea, Degenerative Disk and Facet Disease, and Allergies
When life throws you lemons....
Pick them up and throw them right back at them! :))