My DD is almost 15 weeks old and her sleep has gone down the toilet. Previously she was sleeping a long five hour span and then some little spans but consistently going to sleep from 10pm to 9am with two wakings. Now she only sleeps in 1 to 2 hour intervals going to bed anywhere between 9 and 11 and waking up between 7 and 9. When she is sleeping she is kicking and thrashing about. I don't think this is a growth spurt because her eating throughout the day and night has remained the same as well as her naps. Things have steadily becoming worse through out the last week. HELP!