Back problems

Is anybody else having back problems? I went to ER last night because of killing pain in my back. They told me it was urinary tract infection but when i got appointment to check the baby the dr told me it is probably caused by a hernia 😔 because i ha diffuculties walking. I am only 13 weeks so i guess a lot of pain is still to come? But i saw by little baby waving so happy that he is ok!