Too much sodium?

So I got on the scale and it said 245. I'm not sure why because I have been eating right. I did have one day where I went over my calories by way more than I thought, but it wasn't enough to add 2 pounds. I did have way too much sodium yesterday because I had some salty foods and also marinated them in soy, which is also high in salt so I'm going to blame it on that until I find out different. Not freaking out about it though. My sugar was 105 this morning and 95 yesterday morning. I had a banana right before bed last night so I think that is why it was higher but still VERY good, esp. when you consider that I ate a banana right before bed. :)