What does it feel like when baby turns and has his head down?

Sasha
So yea, exactly what the title says. This morning I woke up about 3 am with what feel like food poisoning. I was on and off the toilet for about an hour and a half. After that I had some pretty bad cramping all morning and I'm pretty sure I had a few contractions. Now my belly feels different, more tighter and more heavier when I'm up walking. I'm 28 weeks 1 day. So my question is, for those who know when baby turned, what did you feel?