I swear I have some kind of heart issue because nearly all day long I have the following symptoms 

• Out of Breath from the smallest things like going up stairs
• Muscle Weakness
• Lightheaded 24/7
• Overheat super easily
• Sweating all the time
• Heart Palpitations 

I know I have panic disorder but its so frustrating and scary that I'm starting to think I really do have something wrong with me, either heart related or cancer or some other illness. Does anyone else get these feelings? And how do you live a normal life with them?