Fat burning mode

So over the past couple weeks, it has been super hot and humid here. Which has caused me to not want to run, or do much of anything at all. I did a session of personal training about 2 weeks ago then ran after. I felt like crap for the next few days. My back hurt, then with the heat I got migraines. I felt so lazy! I wanted to do nothing but sleep. I had pizza for the first time since starting my pre op diet 3 moths ago! Best thing ever! Haha.
Well last Friday i weighed myself and was down 1.5lbs, even after having pizza! Then I decided to go out to my parents house. Suggested I run and they ride their bikes at the high school across from their house. We took the dogs, it was great! Saturday I woke up and weighed myself again and was down another 1.5lbs. I couldn't believe it!
I will be honest, I didn't think I ate all that great over the weekend. Yet I weighed in on Tuesday and was down another 2lbs! I'm not sure what changed, but I feel like my metabolism is finally working! My body has gone into some fat burning mode. Although I don't feel like I deserve the weight loss, I am grateful for each pound lost that gets me closer to my goal.