You must be as thin as a pencil. 135?? Athletic women I know are like 5'9" and 155. 6'1" 160 (and rail thin). 6'3" 195. These are basketball players. Eat.
I'm 5'0" (that's not a typo) and 135 lbs. Here are two pics, an older one (short hair) and a more recent one (I'm the shortest person in the pic). I think I might qualify as an athletc woman:

My advce is stop using the scale to measure your body. A mirror is a far better guide, unless of course, if people look at my pictures and thihnk I'm fat

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"The mass of men lead lives of quiet desperation." Henry David Thoreau
His disciples asked him, "Rabbi, who sinned, this man or his parents, that he was born blind?"
Jesus answered, "Neither he nor his parents sinned; it is so that the works of God might be made visible through him. "
John 9:2-3
Mahatma Ghandi, though a devout Hindu, was widely known to admire Jesus; Ghandi often quoted from the Sermon on the Mount, in fact. Once when the missionary E. Stanley Jones met with Ghandi he asked him, "Mr. Ghandi, though you quote the words of Christ often, why is that you appear to so adamantly reject becoming his follower?"
Ghandi replied, "Oh, I don't reject your Christ. I love your Christ. It's just that so many of you Christians are so unlike your Christ."