Welcome to HCM
We understand your concerns
You should know that there is a syndrome named "fight or flight syndrome". When we fear, adrenaline
is injected into the blood stream and the said symptoms including raised heart beat, sweating etc takes place. Just after some time this will subside with the help of another hormone which is also a body produce. By this body is being prepared for fighting or running away from whatever may come.
Don't worry or anxious. This is body mechanism. Just check your Blood Pressure and vital readings to be sure.