No room in the inn!!!

I'm 22 weeks now and I swear over the last week it's like a balloon inflated inside me. I am so excited to be feeling the baby's movements and to see my bump growing, but I am very uncomfortable and not satisfied after I eat and trying to sleep because there doesn't feel like there's room!!! I also have a lot of pressure in my vaginal region, like there is a tin of weight sitting on me (which there is...). I'm not worried or anything, but I am a little anxious to know its only going to get worse over the next 4 months?! Gah!