Well done on the weight loss - seems like a lot to lose in such a short space of time, could it be that your body's struggling to catch up with the changes leaving it susceptible to minor afflictions?
I've gone from 20st in Oct 2008 to my current weight of 14.5st at a steady rate, similar thing to you - cycling just under 10 miles a day on my commute and calorie controlled diet. I have found that I feel the cold a lot more but I've rarely been ill since having a healthier lifestyle. I've got used to feeling really well, so much so that a the cold I've just had really hit me as I can't remember feeling as bad as I did! Then I remembered that I used to feel like that quite a lot when I was a fatty-fat-fatty.
I've gone from 20st in Oct 2008 to my current weight of 14.5st at a steady rate, similar thing to you - cycling just under 10 miles a day on my commute and calorie controlled diet. I have found that I feel the cold a lot more but I've rarely been ill since having a healthier lifestyle. I've got used to feeling really well, so much so that a the cold I've just had really hit me as I can't remember feeling as bad as I did! Then I remembered that I used to feel like that quite a lot when I was a fatty-fat-fatty.