What you are describing—an isolated spike in heart rate (tachycardia) during interactions with specific authority or professional figures, combined with the fear that people will notice and judge your nervousness—is a classic manifestation of situational social anxiety / performance anxiety.
When you enter these interactions, your brain perceives a subtle threat of evaluation or judgment, triggering a localized adrenaline release. Adrenaline naturally accelerates your heart rate to prepare your body for action. Because you don't experience tremors or other physical symptoms, your body is handling the surge relatively well; the main distress comes from hyper-focusing on your heartbeat and worrying that others can notice it (which, in reality, is invisible to people around you).
Next Steps
Access Free / Low-Cost Medical Care: Since finances are tight right now, visit the outpatient psychiatry or general medicine department at a local government medical college hospital. Government hospitals provide free or highly subsidized psychiatric evaluations and generic medications.
Discuss Propranolol with a Doctor: Talk to a physician at a free clinic about an on-demand beta-blocker (like Propranolol). A low dose taken roughly 30–60 minutes before scheduled professional interactions can physically prevent adrenaline from spiking your heart rate, breaking the physiological loop without affecting your mind or energy levels.
Shift Your Focus Outward: During these conversations, practice actively focusing on the words, facial features, or voice of the person you are talking to, rather than checking your own internal pulse.
Health Tips
Remember that a fast heart rate is an internal physiological sign. People around you cannot hear or see your heart pounding; to the outside world, you appear completely calm and normal.
Practice Paced Breathing: Before stepping up to a reception desk or HR meeting, take 3 to 4 prolonged, slow exhalations. Extending your exhale activates the vagus nerve, which acts as a natural biological brake to lower your heart rate within seconds.