I had some very scary pains over the holiday in my lower right back - my doc had me go to the ER and we found out my right kidney was swollen. I'm going back for a check-up today, but has anyone else had really awful back pains? They say it's the uterus pressing on organs, which can cause the kidneys to swell. The pain is awful! Any advice on ways to feel a bit better would help to - for me it's a heating pad and walking around. Thanks!