Welcome to HCM
We understand your concerns
I went through your problem description. You are right. This happens when you think too much. There are scientific interpretations to this. When you are thinking too much and negative, some negative hormones are injected into the system. These negative hormones are known to induce tiredness
into the system to keep it going. Just like after being worked overtime.Body pain
is due to this. There are certain areas like shoulder. chest, general upper torso etc which are more affected by this. So you are here. Do consult a general physician and confirm.
Hope this clears your doubts. Available for further clarifications.