3 month old wont stop screaming?

My 3 month old has been screaming almost nonstop for 2 days. She doesn't have a temp, she's getting changed frequently, she's eating but only a little at a time and she will only fall asleep when she is rocked in her bouncer fast but no longer then 20 minutes at a time. (she has been sleeping through the night though) We tried the crib, jumparoo and swing but she just screams through it. We changed her clothes, swaddled, unswaddled her and she doesnt want her pacifier. I don't know what to do. She does have colic but it never effected her throughout the entire day since we had her formula changed. It doesn't appear to be gas pain but we gave her gripe water and there wasn't any difference. She has reflux and is on Prevacid and has been getting it everyday. Any ideas will help. Thanks