Hello and thank you for using HCM.I carefully read your question and I understand your concern.You shoud not worry. I will try to explain you something and give you my opinion.
This had to do with a heart rhythm issue.You may have this sensation like your heart is going out of chest for different reasons. it might be a simple
sinus tachycardia.This mean that your heart beats over 100 beat for minute.It might be another
arythmia like atrial
fibrillation.It means that your heart rhythm its not normal but beats in a chaotic way. Or it might be an extra sistolic beat, a premature heart contaction.
All this rhythm issues makes you feel
palpitation, feeling like your heart is racing or gooing out of chest,difficulty in breathing deeply like the air is not enough.
There are different causes of this rhythm issue like simple stress , coffee and alcohol consumption.
Also pathologys like anemia,
hyperthyroidism or
ischemic heart disease might be other causes.
So ,if I was your treating doctor I will recommend some examination like an electrocardiogram, a cardiac echo, a full blood analyze, your thyroid hormones, a holter rhythm monitoring and a
stress test.
Only after this we can judge what we are dealling whith and how to treat it.It might be just a stressed period and it will pass.
Hope I was helpful.Wish you good health.
Best regards.