2 month old baby not sleeping

Mommytoababygirl

Hi mama's 25 years old with my first kid, my daughter is now 2 month old and the first two months she would be so calm and now she's fussy all the time, she would sleep all night, she would take a bath at 6 every night and would sleep till 11:00 drink her bottle and would be back to sleep until 7 am everyday and now she keeps taking her bath at 6 sleeping until 12 am and after that waking up every 30 min to 1 hour

Does anyone have a tip to help me I've been exhausted and don't know what to do.

Did this happen to everyone else plz let me know

Ps. Took her to the pediatrician and he said she's fine and has nothing wrong with her health wise