Do you walk for your commute? If so its likely you never lost the quality of being a foot traffic commuter in the city. Where as i had a sedentary lifestyle. Eat, train, sleep.
I was at my most 25% fat when i was 240ish. I'm now 217 and don't have the same problem. I still probably run about a 10 minute mile. Up from 445 when i was fight training twice a day 4-5 times a week. That was at least a year before i started SS.
10 weeks ago i decided to lose a lot of body fat. Got down to 212 but real week. Then started lifting to get my strength back and weight right back to 220. That was a good balance.
Since i stopped training about 6 weeks ago ( reduction. once a week to every two weeks) when i start training again i need a healthier blend of training. Probably lifting monday and friday using my advance novice program. Then wednesday and sunday: cals, stretching, running and sprints.