- MBTI
- ????
- Enneagram
- 9w1
You know, you may be like me. My metabolism is incredibly high and no matter what I do I can't gain weight. My BMI is 15.4 and while that is drastically underweight my doctor tells me that it is healthy and normal for me. I suggest consulting a doctor about this issue. That'll give you a little more insight as what you should be doing, if anything.
I'm exactly like you, 15.5 and fast metabolism. Any weight I do gain gets cannibalised by my body.