How do I explain this ..... 36 weeks pregnant 🥺

I was so excited to meet my son all the way up until now. It’s like I’m exhausted from everything all this stress I’m dealing with and shit I’m just not excited anymore don’t get me wrong I want to meet him and hold him and be able to feel that again but what the hell why am I feeling this way. I just want to loose my shit. I feel like I’m not ready . It’s my 3rd kid. I just hope I gain all the excitement back .. anyone else has felt like this ?? Let me know