Hello! Welcome and thank you for asking on HCM! I read carefully your question and would explain that these episodes could be related to physical or emotional stress (anxiety). I recommend to closely monitor your blood pressure different times during the day (in sitting position after 10 minutes of total relax) and refer the values to your GP. I would also advise consulting with your GP for a careful physical examination, a resting ECG, a chest X ray study and some blood lab tests (PCR, sedimentation rate, complete blood count, thyroid hormone levels, kidney and liver function tests, fasting glucose, blood electrolytes), to exclude other possible secondary causes of uncontrolled high blood pressure. An ambulatory 24 hour blood pressure monitoring (Holter) may be needed to examine better you blood pressure trends during the day. Hope to have been helpful! Best regards! Dr. Iliri