Do Panic Attacks Make You Physically Weak and Tired?

Absolutely. I feel immediately tired and like I need to lay down for an hour or two. I think it’s because of how much our body goes through during an attack. For me my heart starts beating incredibly fast and I start hyperventilating (sometimes to the point of passing out). I think it’s perfectly normal to feel weak and/or tired afterwards. It’s like running a marathon. Everyone’s tired after running a marathon.