Overwhelmed

36w 2d and I feel like Im at my limit. I cant sleep but I'm so very tired. I have to be up in the morning to look after my 17 month old and I have to try to keep her happy the whole day on my own or else lose my sanity. I'm getting allergies and can't breathe when I lie down. I think baby boy has dropped because I have more pressure. Just needing to vent - anybody else having trouble this far on??