Fatigue

Mackenzie
I'm not sure if anyone else is experiencing this, but is it common during your third trimester to just be sleepy all the time? I was doing good, and it could be because I just got back from a three day trip to minnesota, but I can't seem to function for more than two hours without completely passing out. 
And I'm also feeling a little under the weather but aside from that is this type of fatigue common?