Having cramps and a cough at the same time is the worst combination, it feels like whenever you cough, your puson will also hurt as well. I have a sister so I kind of understand what you're going through monthly. Lucky for her, she wasn't able to feel too much pain during her period but I can agree on the part that she can be a little moody bad girly during these times.
As per eating, there are times that I crave eating alone and sometimes wanting a companion. It's a different kind of vibe, you know? Sometimes I just prefer silence and mind my own business, sometimes I enjoy bickering and chikahan with family or friends.