Post traumatic would be a disorder that includes flashbacks.
Generalized anxiety disorder would be experiencing frequent and intense fear.
Obsessive-compulsive is an extreme fear of a specific object or situation such as, you see one book with the pages facing outward and the rest have their spine showing.
Changes in the force of contraction of the heart
It would never be okay to send your boss that type of response. It's all about texting etiquette.. and well, texting back, "K" or "Txt you later" isn't it chief.
Start in a gym haha.
Strengthen your core..