A missed or late menstrual period is a sign of pregnancy, including ectopic pregnancy. Feeling faint can occur with dehydration or can be a sign of low blood pressure. If you believe you may be pregnant or are experiencing concerning symptoms, seek the advice of a healthcare provider.
While the list below can be considered as a guide to educate yourself about these conditions, this is not a substitute for a diagnosis from a health care provider. There are many other medical conditions that also can be associated with your symptoms and signs. Here are a number of those from MedicineNet:
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Ectopic Pregnancy
An ectopic pregnancy is a pregnancy located outside the inner lining of the uterus. The majority of ectopic pregnancies occur in the Fallopian tube. Signs and symptoms of an ectopic pregnancy may include abdominal pain, lack of menstrual period (amenorrhea), vaginal bleeding, fainting, dizziness, and low blood pressure. Treatment options for an ectopic pregnancy include observation, medication, or surgery.
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Dehydration
Dehydration is the excessive loss of body water. There are a number of causes of dehydration including heat exposure, prolonged vigorous exercise, and some diseases of the gastrointestinal tract. Symptoms of dehydration include headache, lightheadedness, constipation, and bad breath. Treatment for dehydration is to replace lost fluids and electrolytes.
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Problem Sleepiness
When sleepiness interferes with daily routines and activities, or reduces the ability to function, it is called "problem sleepiness." A person can have problem sleepiness without realizing it. Symptoms of problem sleepiness include: consistently don't get enough sleep, or poor quality sleep, fall asleep while driving, struggle to stay awake when inactive (like watching TV or reading), have difficulty paying attention or concentrating at work, school, or home, have poor performance problems at work or school, have difficulty remembering things, have slowed responses, have difficulty controlling your emotions, and/or if you have to take naps on most days.
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Perimenopause
Perimenopause is the time in a woman's life when she is approaching menopause. During this time a woman starts to develop symptoms of declining estrogen levels that may include mood swings, painful sex, night sweats, hot flashes, and weight gain. Every adult woman eventually will experience perimenopause.
At MedicineNet, we believe it is important to take charge of your health through measures such as a living healthy lifestyle, practicing preventative medicine, following a nutrition plan, and getting regular exercise. Understanding your symptoms and signs and educating yourself about health conditions are also a part of living your healthiest life. The links above will provide you with more detailed information on these medical conditions to help you inform yourself about the causes and available treatments for these conditions.
