Odd times to get nauseous...

I was good until week six, the worst problem I had was constant heartburn but I have had reflux since middle school so heart burn doesn't bother me too much. Week six starts and bam! I'm hit with random bouts of nausea, no vomiting but a lot of time spent feeling like I was going to any minute. Now it just shows up when I get hungry or too hot.....I went from being a person who only ate three meals a day and only one of them being big to now eating 8+ snack type meals a day so getting nauseous that much is making getting through the day tough....

Does any one else have nausea at weird times or am I unlucky enough to bed odd...