Is it normal to get a pain at the bottom of my spine?or to feel faint when I stand for too long?

Back aches are normal but feeling faint might mean you havent been eating right maybe ? because i havent been able to eat well in about a week and i feel faint everytime i stand up...x

I eat all of the time haha&ahh;,not looking forward to the pain when I'm a bit bigger 🙈@elisabetesantos