I'm on oxcarbazepine, not carbamezepine. It appears that it's a really rare side effect from that.
http://www.ehealthme.com/ds/oxcarbazepine/edema

I did go out for a walk last night, we went to the farmer's market/weekly town street thing so I could get fruit and see a friend's daughter do a dance performance. Then came home and put my feet up. I was finally able to see my bones again I'm going to take my daughter to the city pool tomorrow. My husband also massaged my legs last night. It hurt terribly, but I could feel things moving around a bit.

I'm already on thyroid meds. Last couple times my blood was checked it was a good level. Supposedly the oxcarbazepine depletes my sodium levels. I started twitching not long after taking it. I have been taking magnesium for that, and putting salt on things when I remember, but I really don't use much salt at all (and we don't eat much prepackaged food). But I don't think I've ever had that level checked.

We'll see how things go today, as I have to sit my butt on my chair at work. I do try to get up as much as possible.