I have the weirdest body. Try as I might I can not put weight on, I can eat until i'm so full that I can't touch another bite and my weight will just stay the same; even if I binge on junk food.
4'11 and 95-100 pounds. Apparently that's underweight but I don't really look it.
I guess I do go for a run every morning, but it's more to wake myself up. The cold air does wonders and if I didn't i'd feel groggy all day.
That's not underweight.. I am similar to you 4'10" and 91-92 and considered healthy. When I was down to 84 it was unhealthy so I put on some weight. Been a struggle because I had been overweight and trying to combat it for much of my life (talking like 145lbs) so a good almost 60lbs heavier than I am now.
If you wanted, you could see about getting a Bodyfat index test done if you are concerned? (They have machines for it or I think you can use certain calipers?) But unless you're feeling weak and etc, I wouldn't worry.
You're the opposite of me in other aspects though. I can happily eat over 6000 calories in one day (that's 20 macdonalds cheeseburgers, or 25 mars bars, or about 100 Pancakes to put it into perspective) in a binge without a struggle through the day. I know because I've done it before (cheesecake, nut-butters, creams, and fried things are very easy and moreish to have.) If I don't watch myself, I can easily let myself consume 2-3 times my daily recommendation regularly.
Guess it's because I've been brought up in an Italian family where our dinners were often very big, carby/fatty/fried (pasta and cheese, or salted fried cod called baccala) and full of many courses as per my dad's Calabrese tradition. Grandmas would always be spooning more into plates and get offended if you couldn't finish their dishes. Sweets like cheesecakes were always available in the freezer.. and Canada is also fast-food laden, etc. Mom doesn't cook like that anymore, and subsequently, all of the members of my family have lost weight.. but now that I live alone I can better watch what I have. Since learning to bake for myself, I rarely like to indulge in store-bought sweets simply because I prefer the taste of homemade stuff... but I still have a mega sweet-tooth and will have a square or two of chocolate (or something like honey/ maple syrup) daily to curb my cravings (sometimes it's a bit more than that but I try to keep it under control.)
It is soo hard to have such self-restraint. However, now I don't envy the people who say they can "eat whatever they want and not gain a thing" because since my lifestyle and dietary change.. I prefer the fresh stuff to the junk.. and I find it's nicer to look forward to having something naughty in moderation.
.. Oops.. I've written too much. Don't mind my TL;DR.
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I could go for some doughnuts, right now.
Come to my house. I pride myself in my doughnut-making (look at the doughnut thread.) Love the fried, glazed, filled ones.. but I also want to soon experiment making some coconut-flour healthier ones whilst maintaining the good flavour and texture of the traditional variety.
The only thing that sucks now is eating doughnuts outside my house (unless they are from a gourmet shop) taste like absolute garbage. Especially when I can have mine warm and freshly rolled in cinnamon-sugar.
I am making some strawberry-and-brandy-cheesecake frozen yogurt as we speak. Which reminds me.. I need to get up and churn the mixture because I don't have an icecream maker.