Getting 3/4 of your calories from a single food stuff (in your case, cream) is just a really bad idea. It will leave you malnourished, because that one source simply doesn't have the spectrum of nutrients you need (vitamans, minerals, etc)
You're getting almost no protein.
You going to have to either REALLY decide to go primal, or give up pretending that you are heading in that direction. Ditching grains and sugar is only the negative part of primal. You need to work on the positive part--rich meats and fish, eggs, diversity of natural foods. If you can't, I honestly think the SAD might be healthier for you!
Zone diet on and off for several years....worked, but too much focus on exact meal composition
Primal since July 2010...skinniest I've ever been and the least stressed about food