35 weeks & nausea?

China
I'm 35+1 and experiencing nausea again, ive also been sick once a few days ago when I woke up in the morning. I'm feeling like baby is a lot bigger now, I keep feeling pressure on my ribs. I have also been experiencing belly aches and needing to go to the toilet for a number 2 more frequently. Is this happening because baby is a lot bigger now?