35 weeks, moody and a bunch of body aches

Lately I've just been on the moody side for I honestly don't know what reason. I'm currently 35 weeks pregnant due August 30th. This is my second pregnancy. Also I've been having a lot of body aches and can't sleep. I can fall asleep no problem during the day but at night I'm wide awake. And I've been having leg/knee pain, back pain, weird pains in my stomach and pelvis. I feel this pregnancy is weird all around compared to my first. Is anyone else going thru this??