In agricultural tractors for example, as a general rule 40 to 50 percent of the value of the machine will be lost in the first quarter of the machine's life and by the halfway point of lifetime, from 70 to 75 percent of the value will be lost.
People with PTSD may feel constantly alert after the traumatic event. This is known as increased emotional arousal, and it can cause difficulty sleeping, outbursts of anger or irritability, and difficulty concentrating. They may find that they are constantly on guard and on the lookout for signs of danger.
These are other symptoms of PTSD: 1  Panic attacks: a feeling of intense fear, with shortness of breath, dizziness, sweating, nausea and racing heart. 2  Physical symptoms: chronic pain, headaches, stomach pain, diarrhea, tightness or burning in the chest, muscle cramps or low back pain.