Weight / Fat loss

I realise this wont go down well at all, but does anyone else have trouble keeping weight on?

Unless I conciously make an effort to eat three solid meals a day I get stupidly skinny, even if I cut back on gym / cycling. I find eating takes too long and requires too much effort, especially when you're busy - is this the beginning of an eating disorder or do I just need to eat more cake and drink less espresso?

edit: I'm 6', 70kg and when last checked 3 months ago 11% bodyfat. The physician told me to gain weight back then and I was 4kg heavier.

Make an effort to eat regularly or you'll risk screwing your metabolism up. I'm guessing you're young, so right now you can get away with it but later on say late 30s early 40s when your metabolism starts to change anyway it could mean payback. Bear in mind if you starve yourself your body will metabolise itself hence losing weight. Even though I'm on a strict diet I eat little and often.

It's not an eating disorder if you do something about it and don't allow it to become one.