If you mean:
You look at yourself barely chubby while someone else may look at you and think you are quite Fat?
I believe that being involved in this and into weight gain it is certainly true that we view fat as a lot more fat than someone without this fetish who are not into weight gain. But, I guess it is all just in perception. I can tell if my wife gains 5 lbs. but, I never think it looks bad, only better always. She has never gained enough weight for me to not try ink she was hottest at her heaviest.
Also, I guess my level of fat was on women has gone much higher over the years. Hopefully I answered your question a bit here.
3 days