Insomnia :(

C☕️🐸 • Baby #2 (son) born Sept 2020!! #1 (daughter) was born summer, 2016! 💗 39. IIH diagnosis 2018.
Any plus size ladies dealing with this? I'm 14 weeks and it seems like clockwork I'm awake at 3:30 every morning until about 5 or so then get one more hour sleep and have to get up for work. I'm so TIRED all day and get headaches from no sleep. I exercise every day and no caffeine either ... Usually I go to bed around 10 or 11. Anyone suffering with the same? Any tricks that help? :( I'm so tired!!