Any mummy feel more tired during 2nd pregnancy? I'm only 6 weeks pregnant and I feel really really tired..

Yes. I generally felt more tired during my 2nd and 3rd pregnancies, especially in my 1st and 3rd trimester. Many women generally experience tiredness during 1st trimester, based on my reading of articles, etc. on pregnancy. But in your case, it could be the pregnancy hormones as well as having to care for another child out of the womb. Eat well, stay hydrated and rest well mummy.