When i stretch my body out a little bit my lower stomach feels really tight and feels like its stretching it feels awful and hurts! Also, i went to the shops today and walked for over 5 minutes straight and started to feel really dizzy and flustered and lightheaded. i am on the pill i don't know if that has anything to do with it but i have never had this problem before. This only started today! i can barely sit straight or my tummy feels awful! what could it be?