My stomach is not upset from eating something. It is tender and sore to the touch. I don't really think your rudeness is necessary. If you don't have anything useful to say, then maybe just don't comment. Rude.
I felt like I had done a hundred sit-ups when that was hardly the case. It could be anything really, but it's not unusual at all to feel tightness/soreness in your abs (not necessarily uterine pain) especially in the early weeks.
Re: Tender and sore tummy