Am I the Only one that feels so uncomfortable from a pregnancy?

This is my second pregnancy and I am 6 months along now. I am beginning to get big. I feel so awkward all of the time. I can never find a comfortable position. I get winded very easily and I feel out of breath quite quickly. I am so easily fatigued when I am moving around. I am not obese or out of shape I am usually a very active 26 year old. I am surprised how much of a toll this takes on my body. I have only gained 7lbs so I am not much bigger than I was. Everyone talks about the morning sickness and the hunger but people dont mention that it is difficult to maneuver around and change positions. Does anyone else feel like I do?