Nails???

Cydney • I'm the luckiest girl in the world 💙
Can anyone help give me some insight?! I always seem to get hang nails and ingrown nails and they hurt so badly I can't use my hands and sometimes my toes hurts so bad I don't want to walk. I try to take really good care of myself and eat right, I exercise every day and I have a 3 month old. That's exercise enough, haha! Any suggestions to what I can do? Am I missing something in my diet? 
TIA