I have a hypothesis, that PATM could be caused by mental disorder. I don't mean mental disorder as in being a crazy person with psychosis.
Rather, do any of you have symptoms such as anxiety/panic disorders, chronic subthreshold depression/ recurrent depressive episodes, or and/or hypomania.
Remember, the brain controls all other organs such as the digestive and nervous system. Hence any abnormalities in the brain could cause the other systems of the body to malfunction.