1 year old not sleeping like she used to

Hey parents! My baby just turned 1 on the 2nd. She was on a solid schedule, sleeping all night waking up 1 or 2 times a night for bottle , up until we switched formula to toddler formula. Which was after the 4th maybe on the 5th or 6th. She slept thru all the fireworks (and we live in the part of town where it is loud alllllll night long) anyway… now she wakes up constantly throughout the night. I’m not talkin 3/4 times.. I’m talkin like every hr and 1/2 to 2 hours.

I thought it could be due to teething, tried the gel and as far as sleep goes nothing changed.

Has anyone else experienced this?

Any advice?

Thank you..