Hello and thank you for using HCM.I carefully read your question and I understand your concern.
You should not worry about.
I will try to explain you something and give you my opinion.
You should know that typical heart pains have some characteristics. They usually are retro-sternal pains like squizzing ,tightness or heaviness. They may irradiate to both arms, neck and jaw. They last from 5 to 20 minutes.
Pains that last all night are not typical heart pains.
The first and most important thing is to exluce ischemic heart desease.
The fact that you already have done echo and its normal its a very good thing.
If I was your treating doctor I would recommend a strees test to definitely exclude
ischemic heart disease.
The fact that you have excluded any skeletic problem is also a good thing.
The other thing to exclude is a gastro intestinal problem that sometimes are resposible for this kind of pains. So, I would recommend a fibrogastroscopi.
After excluding this we can be shure thats nothing to worry about.
Hope I was helpfull.
Best regards, Dr.Ervina.