I'm 29 weeks today and I'm right there with ya mama. This is pregnancy #3 and girl #3. And this time around is way different than the first 2:/ I nested for 1 day a week ago. Wish I would've nested for like 2 weeks!! So much to get done in this house. Ugh!!
Its normal to feel tired, remember you're carrying a baby and its not easy. Try to drjnk a lot of water and eat something sweet you will feel more active.
Good luck and congrats on your second bundle of joy.