Why could my daughter be out of character?

My 5m old is crying a lot more and I can’t quite understand why 😢

She’s a happy baby and sleeps through the night although recently she has been different. It’s a challenge to settle her for her naps in the day , she is soo tired then but fights her sleep. She proper cries and it sounds like she’s being hurt!!

This isn’t like my baby I’m feeling useless! 😩

Her teeth are coming through other then that she’s healthy! I’m not sure why this is happening.

Any other mums who can relate or know why this happens, x