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.
Insomnia is one of the most common causes of extreme fatigue. 1  It is a syndrome where the complaints are: 2  difficulty falling asleep, 3  trying to stay asleep, and waking up often, 4  having unrefreshing sleep, 5  irritability, 6  frustration, 7  daytime fatigue with lack of energy, 8  memory problems, 9  problems at work or in the family.