I love my daughter, I really do, but lately it’s been too much. She’s six and it’s like she can’t stand to be away from me for even a second. If I leave the room, she follows me. If I sit on the couch, she’s all over me. If I take a shower, she’s sitting right outside the door waiting. It’s just endless stuff and I feel like I can’t even breathe. She doesn’t just want to be near me, she acts like I’m hers. I’ve tried to encourage her to play by herself or spend time with her daddy, but no, it’s all “Mommy, Mommy, Mommy” all day. Is this normal? I’m starting to feel suffocated and I don’t know what to do.
I feel the same way! My daughter is attached to me like a percept. The other day I told her I was going to the bathroom alone and she looked at me like I broke her heart. 
It can be stifling but it’s not forever, I promise! I went through the same thing with my son when he was around that age. It was exhausting, but when he got older and started school things changed. He’s 9 now and actually asks for alone time, lol. One thing that helped me was setting little boundaries. Even if it’s just 10 or 15 minutes where I say, “This is mommy’s time to read and you can play nearby but quietly,” it gave me some space and taught him that being apart for a little while is okay. It gets better!
Oh my god, I feel this in my soul. My daughter is exactly the same. Some days I’ll hide in the bathroom for five minutes to rest, only to have her stand outside asking me what I’m doing. 
I know it’s a phase but boy is it exhausting. Not real advice here, just solidarity. It’s okay to feel overwhelmed. You’re not a bad mom for needing space!