Cranky babe

My baby turned 4 months old yesterday. I thought we hit our sleep regression last week because baby was having difficulty falling asleep and staying asleep and was waking during the night. But yesterday she was so cranky & clingy and she would hardly take an hour nap and last night was so rough. She would wake every 2 hours and I had to feed her every 3 hours which hasn’t happened in so long. Is this the sleep regression? Oh man mommas I hope this doesn’t last long. I was getting used to my sleep again😅