Is anyone else experiencing this???

I never post on here but im desperate for relief. I am almost 26 weeks pregnant and I am SO uncomfortable! Lying on my side is actually painful because I feel my belly weighs so much. I have slept upright for the past 3 nights. I also feel like I am huge already. Trying to catch my breath is a bit more labored too. My stomach is so tight. This is my first. From early pregnancy I have looked bigger than I thought was normal, but she is growing at a normal rate. What do you do to find relief????