I am about 5 feet 9/10 inches tall. I currently weigh 120 pounds. The heaviest I was was about 125-127. Last school year, I participated in cross country, winter track and spring track. I was very fit. I still run but definitely not as often since it's the summer.
I was just wondering if I'm okay. 120 pounds isn't that little. But, I am tall. My bones are pretty thin. My arms look like tree branches. I think when people see me, they think I'm way too skinny.
I must be healthy since I'm able to run. I think I should be a little heavier or stronger because my immune system is pretty weak. In the past, I had the stomach virus three years in a row and went to the ER all three times. I got the stomach flu a few months ago. I was okay. From November 2006- May 2007, I got the cold at least 8x. I'm just sensitive to sudden temperature changes.
As long as you eat enough, are not tossing your cookies to stay thin- I think you're fine. Thats just how you were made. As for colds/flu/etc. I have the same problem. I was a 'sickly' child and am the first one to catch a bug if it's going around. I'm a little guy (5'8" 165 lbs) and I'm 35. I just have a fast metabolism. My cholesterol is good, all other tests are good. I'm just high strung and blinking burns calories. You'll be the size you were meant to be when you finish growing. No worries....
I think you are probably fine. Do you feel strong, do you have good stamina when walking or doing things. If so, then I would say you should not worry. I don't mean to be forward, but I think thin women are beautiful. Think that you are and you will be.
I think you're probably fine as long as you're eating properly and have a good diet. I'm 21 and am a similar size to you, you probably just have a high metabolism and it's the way you're made. If you're constantly getting ill you might want to invest in some supplements to help boost your immune system? I use a supplement called Moringa and since i've started using it i've felt loads better within myself, am more focused and have more energy. Hope that helps!