Hi, Congratulations on the new baby! My dd1 was very similar. 5lb 15oz born at 37.5 wks. FF as completely refused to BF. She struggled to get her wind up too initially - sometimes we were winding her for an hour after feeding. I found gripewater helped this a bit, as did keeping her upright. The sleepiness disappeared by about 2 weeks if i remember correctly - she seemed to suddenly have much longer spells of being properly awake. I think I could stop winding her completely by about 6 months but it does get easier as their systems get better at dealing with it.
It sounds like you're doing the right thing in waking her up to take her feeds. I think my daughter would have happily slept all day without food given half a chance.
She's now nearly 4 years old and while being petite, is well within expected height/weight for her age. She's still not overly bothered about food though - seems to be missing the feeling of hunger ( wish I was!) as I still have to persuade her to eat occasionally. Sounds like you're doing all the right things - good luck!
Thanks both of you for your advice. I spoke to the HV today and she did say that she might grow out of her sicky stage.....we'll see. She even opened her eyes for 20 mins or so this afternoon but has now slept ever since. And it's nearly bedtime - the only difference for her being that she'll go into a bed in a dark room rather than her snoozing in front of the telly ! What a life eh?