I was going to say this, as this one is a biggie for on-scene triage. I do wonder if there has been any study to see if hormonal therapy to accompany transition has any impact on reported symptoms of heart related issues.

** Since we are on the subject **

PSA: Women do not generally experience the same symptoms when in the early stages of a heart attack as men do. This is directly from the Mayo Clinic:

Women are more likely than men to have heart attack symptoms unrelated to chest pain, such as:

Neck, jaw, shoulder, upper back or upper belly (abdomen) discomfort
Shortness of breath
Pain in one or both arms
Nausea or vomiting
Sweating
Lightheadedness or dizziness
Unusual fatigue
Heartburn (indigestion)

These symptoms may be vague and not as noticeable as the crushing chest pain often associated with heart attacks. This might be because women tend to have blockages not only in their main arteries but also in the smaller ones that supply blood to the heart — a condition called small vessel heart disease or coronary microvascular disease.

Compared with men, women tend to have symptoms more often when resting, or even when asleep Emotional stress can play a role in triggering heart attack symptoms in women.

Please take these symptoms seriously. Women are more likely to die from a heart attack than men.