
Boss Man, I've commented on your reply below.
It might be one or two things with the diet causing an issue.
The 4 squares of chocolate if you do that every day, could be adding anywhere between about 120 and 160 added calories of fat and sugar in your diet, depending on the calories per square and the healthy pizza, might be an issue too, depending on what's in it. Yes, it could be this!
You might be overdoing the cardio. You might be getting some muscle gain too, but perhaps you at some point increased your sodium intake, without realising it and caused some water retention. homemade pizza is made up of whole wheat flat bread (100 calories), hummus, fresh tomatoes, broccoli, beans, and two lite laughing cows. Maybe it's the hummus...
Also more muscle burns an extra 45-50 calories a day, for each added 1lb, but losing some could have a reverse effect, so if you perhaps slightly decreased calories, but suddenly added more running in, that might do it, whereas you might have been better in that case to consider a small caloric increase on running days, as opposed to a small cut, but obviously I'm speculating, as I'm not sure how you have changed, or managed your diet and exercise in this time. Could eating too much protein cause weight gain? I've been eating loads of fish, pork, steak, and chicken. Thanks again, Boss Man!