Startle reflex is back??

Valerie

Anyone else's baby suddenly get their startle reflex back after weeks/months of smooth sleeping? Pretty sure my little guy is going through the 4 month sleep regression. He has slept so well for a couple months now. A week or two ago he started fighting sleep and wakes up startled a lot. He also wakes up multiple times in the night now and has a hard time going back to sleep. I am so freaking tired! 🥺