Pregnancy pain and depression?

I'm 23 weeks and I'm just in pain and I don't know if it's my regular pain or if it's pregnancy related pain. My back, knee, ankle, and stomach hurt, I have acid reflux that burns my throat, and I may have slight heartburn (not sure what that feels like). Tylenol hasn't been helping the pain at all. I have been very, very emotional recently and have extremely low self-esteem. I hate taking pictures and looking at myself. I also feel like I have no maternal bond with my baby. Anybody have any recommendations? I'm feeling lost.