Same thing happens to me :/
I would lay on my left before getting up laying on your left gives more oxygen to the baby then I would call my doc and let him/her know what's going on and see what they say they might want you to come in
My whole belly. It felt like I been kicked. It was really tight and down lower it felt pressure
I usually sleep on my right side but if I do ever feel pain I lay on my left side for a few minutes before I get up. Where exactly are you noticing the pain?