i can feel the twinges even when I am not walking around. there was once, when I felt the stabbing pain when I suddenly stood up. my symptoms of lower abdomen started last fri, at 3dpo. then it stopped(or didn't really take note), then it came back from wed till now. so it's 14dpo for you, can start to test already.
cold? is it because of the rain + air-con, u felt cold? i felt ok. not extremely cold or tired. just the discomfort on my lower abdomen only, plus my very stuffy nose only.