Mama, since you had costochondritis before at it's not going away now, at mas lalo pang nakakaabala ang tulog mo, kailangan mo talaga mag-check sa doctor para ma-assess properly, especially ngayong 23 weeks ka na. Hindi ko kayang sabihin if normal lang yan o kailangan ng specific care, pero your OB or a specialist talaga ang makakasagot nito nang tama. One of my mum friends din had rib pain during pregnancy at kailangan syang i-guide ng doctor kung paano mag-manage safely while preggy. Don't wait na mag-worsen pa, mag-book na ng appointment, okay? Sending you comfort, mama.