Since coming back from Alabama my daughter is restless. The first night she sleep but was kind if…

Since coming back from Alabama my daughter is restless. The first night she sleep but was kind if whining most the night tossing and turning and now that last two nights she wakes up screaming but she don't seem to really be awake. She has woke up at 1:30 without screaming both night and I changed her then she went back go sleep then wakes up about 2 to 3 hours later doing the screaming won't take the bottle for about 15 minutes. After about 15 mintes of rocking her and calming her down she finally relaxes enough and will take her bottle and go back to sleep. Why could she be doing this?