Sleep Deprevation and Bowel Liquification
Overt harassment for a few years now. Everyone's torture is different, but the primary physical methods used on me are sleep disturbance and GI aggravation. One of the patents someone else listed was specifically for a frequency and pulse rate that caused a test subject's bowels to be liquified. If you're suddenly suffering from these two issues and can't find relief, you're likely being aggressively targeted. The long term health effects from chronic lack of sleep and improper nutrient absorption are devastating to your organs and short term symptoms include irritability, fatigue, depression, anhedonia, etc.
Some speculate that the reason is to train AI to recognize and/or cause fear and pain.
Edit: deprivation, not deprevation lol