My 6 month baby has been sick with tonsillitis. Sleep has been awful. Even If I hold her to sleep She keeps jerking her body and arching her back backwards in her sleep and crying. She doesn't seem able to sleep more than 10 mins before she starts arching back and crying. Could this be sleep apnea or shall I just chalk it up to just bad sleep and restlessness? Not sure what is going on. She doesn't sleep independently yet , she is always fed or rocked to sleep. Thank you for any answers