9.5 month old suddenly crying during bedtime and constantly waking throughout the night

My 9.5 month baby has been such a good sleeper. She used to get to bed at 9pm without crying. She would take her bottle and basically put herself to sleep and will wake up once for fees during the night. For past 2-3 nights she has been waking up constantly. She wouldn't give back to sleep. Today she cried non stop for over an hour during bed time. Her naps turned to shit. I am exhausted. My happy baby is turning into grumpy, clingy, crying baby who is refusing to sleep. What do it do? Any remedies? My husband works overnights so I am all by myself going through it. I am extremely tired. Any helpful tips would be appreciated.