being skinny😔

Soo before my pregnancy i was confident about my self and my body i had boobs my stomah was flat but not too flat ive never had a big butt but i had something lol my thighs were the right size but after my pregnancy i have NOTHING besides boobs but nit as muchas i used to i have no butt my thighs are skinnier my stimach is flat but other than that i cant gain weight for me to be able towork out and get everything back the way i used to be i weigh 95lbs! 95!!  Ive always been 115 atleast but i cant seem to gain weight and yes i eat alot! For my size.