Baby always cries before sleep

No

My 1-month old recently started crying before she sleeps, every single time. She’s eating well (every 2-3 hrs) and sleeping well. She’s happy after eating until she starts to get sleepy and then she just cries for 5-15 minutes until she falls asleep. I rock her while she cries, but nothing soothes her except for sleep. Then she sleeps wonderfully and wakes up happy and hungry. Is this normal? Hopefully it’s just a phase?