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.
There are two types of insomnia based on the regularity and duration of the sleep disturbance and daytime symptoms: 1  Short-term insomnia: This type of brief insomnia lasts for up to three months.  Chronic insomnia: This type of insomnia occurs at least three times per week and lasts for at least three months.