I have been feeling very wierd. My stomach feels as if it is stretching and i have been having heartburn, nasuia headaches, fatigue, dizzyness, and loss of appatite. Could i be pregnant? or Is it just some type of other sickness i may be having? I have gone through 6 pant sizes in just less than 2 months and i am only getting large in my stomach with tightness. i should have started my period on the 6th and it is now the 11 and i am pretty regular on my periods. thank you