15 pounds underweight? army ?

YES it is a big deal seeing how you are in all likelihood 15 lbs underweight based on BMI and not the actual min. weight.... because the min weight for 5'9 was 127 and I was six pounds under so I got a BMI... i was 18.1 and told the minimum for a female was 18 for a BMI... go home and eat LOTS OF PROTEIN AND CARBS AND LOAD UP on the calories, also try working on your push ups and sit ups... i know personally my muscles had deteriorated from not having been used much since high school (im going 09S option with a 4 year degree already) and even having started running again and have built muscle and not lost it (which seems counter intuitive for running) just try to put the weight on in a HEALTHY way... i have been trying to add weight and binged on junk food before going to MEPS as I knew I would have an issue because of it and was just left with a very upset stomach (sorry for the lack of punctuation...)