We usually think of air pollution as being outdoors, but the air in your house or office could also be polluted. Sometimes a group of people have symptoms that seem to be linked to time spent in a certain building. There may be a specific cause, such as Legionnaire's disease.
Symptoms of early pregnancy can also be similar to symptoms experienced prior to the menstrual period, so a woman may not recognize the symptoms as related to pregnancy. This article describes the most common symptoms of pregnancy in its early and later stages. Medically Reviewed by a Doctor on 12/4/2014.
Fatigue: Fatigue can be a sign of PMS or pregnancy, though fatigue has many possible causes. During the latter stages of pregnancy, anemia can cause fatigue, but more often the cause is probably just a need for more rest! In some women, fatigue can be the very first sign of pregnancy. Since fatigue is so common, it is not a reliable sign as to whether you might be pregnant or not. PMS fatigue, like most PMS symptoms, usually gets better with the onset of the period. Fatigue that gets worse during the blood loss of the menses could be a sign of anemia. Fever: Fever is not a normal symptom of either pregnancy or PMS.