Hi, I am 39 years old and generally in good health. I was recently attack in which I was told I have concussion. I am not sure whether it is a concussion I am suffering from at the moment. I am feeling very sick, tired, have slight stomach cramps, breats are slightly tender and a dry mouth. I did suffer from diarrhea two days ago but now I am constipated. I am worried I may be pregnant, but not sure as it will only be between 1-2 wks if I have concieved.