Hello, I am 2 weeks late on my period. I taken 3 urine tests (not in the morning) and all have come back negative. I am experiencing some intense vertigo (for 4 days now) and diarrhea (for 3 days). I went to the doctor two days ago and they simply made me take more urine pregnancy tests which all came back negative. The vertigo is really bugging me. I m not nauseous just very dizzy throughout the day specially during rapid movements, everything seems like its spinning. I also felt light headed and like fainting.I Please help.