I was wondering if anyone knew the difference between lower back pain or a kidney problem?? For the last 2 days, I have had this annoying ache in my back. It's the lower right side and radiates straight up a few inches as well. I usually get sciatic nerve pain pretty bad during pregnancy and have had some this time around and I know what that feels like. But this is different. I took some tylenol this morning, I was going to take something stronger, but I didn't think it was a good idea being that I am 11 weeks. I also put ice on the sore spot and laid down for 30 min. It's still there, and hasn't gotten any better or worse. I haven't done much to really aggravate my back because I am so sick with nausea and vomiting and end up resting most of the day. Any ideas? My husband seems to think I am overreacting, but I am just concerned and it is painful when I move. Just not sure if its a pulled muscle or something else. I thought if it was muscle related, ice and some tylenol would have at least taken some of the soreness away. I'm lost! =/