Hello. Yes impulsivity in any form may be part of BPD. We all experience anxiety and want to do away with it. However, people with BPD are unable to "sit with anxiety ". As a result, they end up doing things which they regret.
Next Steps
See your psychiatrist and psychologist to discuss methods to overcome impulsivity. If you have a trusted friend or family member, ask them to be your support person during stressful periods.