Thank you all for your replies! I have seen a trend in fat gain, but I have come to the conclusion that it is my diet. I have been following CKD, BUT (and this is a BIG but) I have not been meticulous with the calories.
On July 8th, I made sure of my calorie intake, and the weight is now coming down.
On a side note, carbing up has been (and still) a learning process that I have not mastered, and seems to send my progress backwards...