These days I might count myself as more of an A/ 3 though lol. Since then I think I just don't have the reserves I did, so I'm usually extremely hungry and fasting has been tough since Christmas. I hope this is just a temporary thing, but I still don't have much of an issue spreading meals out, usually skipping breakfast and eating as late as possible.
Obviously I don't do 5:2, but it's close enough. For me at least I had little problems. It makes sense though when one has less than 10 ibs left to lose fasting gets a bit tougher.