Do i have a problem?!

Do i have a problem?

i am naturally skinny....5'5, 98-100 poundish.

I feel like ive become skinnier though...ive been eatting so much but the past few days ive had diareeha. [idk how to spell it.] I cant tell if ive lost weight bc my scale is always messed up but i feel like my legs have gotten a little bit slimmer in the thigh area...is this like a problem? I feel fine 98% of the time but sometimes i get stomach aches and later i have diareeah. I just had it

3 weeks ago
im 14 years old

I would suggest you go to a doctor and let them know whats going on with you . In the mean time you need to be replenishing the fluids you lost so you wont become dehydrated . Some people are meant to be on the slim side .