I've Got That Funny Feeling

I remember this from last time. Towards the end I started feeling strange. Like a strange thing hanging in the air. Now last time I had BP issues so I thought it was that. But now I realize this is that same feeling when baby is nearing his birthday. I wish I could remember exactly how long I felt this way before giving birth. I wanna say it was at least a couple weeks. I can't explain the feeling.... but it's like big change is eminent. It's not happy or sad or exciting or scary it's just...strange. Does anyone know what I'm talking about?