I have a 13 mo dd, she slept through from around 8 weeks, when she got to around 5 mo she stopped and her sleep has been gradually getting worse.
She currently will not go to sleep before 11.30pm, will wake 3ish times in the night and up around 6.30. She very very rarely naps. She will not settle in her cot at all. To get her to sleep at night takes about an hour of holding and rocking, then she goes in my bed.
During the day if I put her down, she is hysterical. She wants to be held 24/7 but won't let anyone else pick her up.
I feel like I'm going insane 
I have a 3 year old ds who isn't getting much attention as I'm doing everything one handed.
She is under a consultant for other problems but doesn't have her next appointment until the end of jan as all the clinics were cancelled. Went to gps last week and they thought maybe it was wind keeping her up so prescribed gaviscon. The first couple of nights she went to bed around 7 and only woke once or twice but the last two night have been awful.
Anyone had anything similar?