Hi I really need some advice & support. I am a...

Hi I really need some advice & support. I am a first time mum with a 7 month DD who at the moment is so up & down with her night time sleep & breastfeeds. I had all sorts of problems for the first 3 months with breastfeeding her but we seemed to get the hang of it not long after then. She suffered colic for the first 3 months & then went straight into teething - She has five teeth with her 6th coming through now. From 3 months onward she has been able to self settle herself to sleep after a cuddle & BF. Since she has started to roll & been able to move about more - self settling takes a bit longer & about 3-4 attempts at tucking her back in her cot blankets (as she tends to wriggle all over the cot). I have always believed in breastfeeding & I want to BF her until she is at leasat 12months old... maybe older.I have always BF on demand & therefore have no set routine or specific time that I feed her. Of late she has been irritable with teething & really not sleeping well at night. She is a catnapper in the day & only has a few "sleeps" that vary anywhere from 20mins to 45mins & she usually only has about 3 of those. (sometimes I get lucky & she will sleep for 1hour & a half) We usually put her down to bed at night between 7:30 - 8:30 depending on her mood & sleepiness & she is usually awake by about 7-7:30am. She has very rarely ever slept through the night She usually wakes up at least twice in the night for a BF & i always change her at this time too. Here is where I really need help!!! She is now waking up so much more in the night & is very irritable often crying & being clingy-it is about 4-5 times a night. I am usually the one who gets up to her & I always pick her up give a quick cuddle, change her nappy, then offer her a BF & put her straight back down with her dummy to resettle. She has never had a problem with this before. BUT now she just cries & gets really cranky with me while I am changing her & seems to be so impatient for her BF. I have tried feeding her first then changing her but she is still irritable & doesn't settle back to sleep as well. I have noticed when my DH gets her in the morning 7-7:30am & changes her to bring her in to me for a feed she doesn't at all carry on with him like she does with me. So can anyone tell me what it is with her waking so much & why she is so irritable towards me? I really need some sleep & I am finding this very hard. Please help?