Borderline Personality Disorder (BPD)
If you have borderline personality disorder, you probably feel like you're on a rollercoaster—and not just because of your unstable emotions or relationships, but also the way that your self-image changes frequently. Even your likes and dislikes may change.Some things in this passage are confusing and unclear.
People with Borderline Personality Disorder tend to be very sensitive. Some say it feels like there is an exposed nerve ending, and even the smallest things can set them off. And once upset, they are very difficult to calm down. This emotional volatility and difficulty self-soothing leads to problems. The relationship turmoil and impulsive behavior may be due to problems in the relationship.
When you're feeling overwhelmed by strong emotions, you may not be able to think straight or stay grounded. You may say hurtful things or behave in dangerous or inappropriate ways that make you feel guilty or ashamed later. This cycle can be difficult to escape. There are effective treatments for BPD, but it’s not that bad. You can use coping skills to feel better and regain control of your thoughts, feelings, and actions.
https://www.usa-good.com/2022/02/borderline-personality-disorder-causes.html