Iâm pregnant and have had a blood test for chickenpox. The blood test can show that you: 1  Are immune (have already had varicella disease or varicella vaccine) and have no sign of recent infection. You have nothing further to be concerned about.  Are not immune and have not yet been infected.
Causes of acute insomnia can include: 1  Significant life stress (job loss or change, death of a loved one, divorce, moving) 2  Illness. 3  Emotional or physical discomfort.  Environmental factors like noise, light, or extreme temperatures (hot or cold) that interfere with sleep.
1 Many medical and psychiatric conditions may be responsible for causing insomnia.  Some common symptoms of insomnia include unrefreshing sleep, daytime sleepiness and fatigue, mood changes, poor concentration and attention, anxiety, headaches, lack of energy, and increased errors and mistakes.