21 weeks and super uncomfortable

Samantha
Guys I'm like super uncomfortable. I don't know if Im just being a huge cry baby but everything feels so uncomfortable. I can't sit or stand a certain length or else my back starts hurting. I have this burning sensation in my stomach and back is that normal? I don't know if these are normal symptoms and it's okay to feel like this or if I'm just being too sensitive and a huge baby. Im not big either so I feel as if my back pain doesn't make sense. Just need some reassurance that I'm normal 😂