The core pattern you are describing—intense physical anxiety (rapid heartbeat) specifically triggered when interacting with professional or authority figures, driven by severe cognitive fears of being judged as "uneducated," "foolish," or humiliated—points directly to Social Anxiety Disorder (SAD), specifically a situational or performance-type presentation.
In this pattern, your brain misinterprets professional interactions as high-stakes evaluation settings. The automatic thought that you might make a mistake triggers a fight-or-flight response, flooding your system with adrenaline. It is important to know that professional staff (receptionists, bank clerks, HR staff) handle hundreds of routine queries daily and are focused purely on completing their work, not on evaluating or judging the intelligence of the person in front of them.
Next Steps
Initiate Cognitive Behavioral Therapy (CBT): CBT is the gold-standard psychological treatment for social anxiety. It helps you identify and systematically challenge "catastrophic thoughts" (e.g., “If I make a mistake, she will think I am foolish”) and replace them with realistic, grounded perspectives.
Practice Graded Exposure (ERP): Under guidance or self-direction, practice entering these situations starting with low-stakes interactions (e.g., asking a simple question at a bank counter) without avoiding them or using subtle safety behaviors.
Consult a Psychiatrist for Pharmacotherapy Options: If the anticipatory physical anxiety prevents you from stepping up to these counters, consult a psychiatrist. They may evaluate whether a targeted, on-demand beta-blocker (like Propranolol) taken 30 to 60 minutes prior to block physical heart racing, or a daily SSRI for long-term anxiety reduction, is appropriate for you.
Health Tips
Avoid sending others to handle these interactions for you or completely avoiding professional desks. While escaping the situation provides immediate relief, it reinforces to your brain that the interaction was dangerous, making the anxiety worse the next time.
Reframe the Encounter: Before approaching a desk, remind yourself: "Their job is to assist me with a routine transaction, not to grade my intellect."
Use Paced Breathing: As you walk up to a counter, slow down your breathing—inhale for 4 seconds, exhale slowly for 6 seconds. Extending your exhale signals your autonomic nervous system to bring your heart rate down.