This insomnia kicked in around 30 weeks😒 I went to sleep around 4am (thanks to a couple Benadryl) woke up around 7. Now I'm off to go get my NST. I need sleep😁💤

Damn I'll be around 40!!! :(
Yesterday I went out with my boyfriend went to watch a movie, me and him don't live together yet. but point is yesterday when he was dropping me off his like sleep over at my house witch the mom and dad lives. I said no,
his response was why is everyone deciding or making choices for you and their going to do the same with the baby, when I know that's not true. what he thinks is that my mom tells me not to sleep over. So he left all mad. and I felt in my heart that he went on and cheated on me...
Is it normal for an 18 month old sleeping patterns to drastically change. He goes to bed around 1030, he used to wake up around 6 or 7 am now he sleeps until around 12.. . Is he going thru a growth spurt? Should I wake him or let him sleep thru it??
I see so many mommies giving their babies rice cereal to sleep even though it's not recommended? Why?
Is it normal to have insomnia after 30 weeks? I cant sleep at night anymore. I literally fall asleep around 5am! P.s- this heartburn needs to go.