Welcome to HCM
We understand your concerns
The chest pain
you experienced around your rib cage
after you came back from work tired, might be due to pressure arising out of gastric derangements or due to muscular contraction.
Heart related pain has several other associated symptoms. Even your left arm pain
may not be associated.
Just have an after thought. go through the events that happened prior to that incident and food you had on that day. You will get the answer.