newborn :fears to sleep

Hello ! I have a daughter of 6 weeks that won't sleep if not by her side all the time!I had a difficult labour of more that 12 hours (I was induced on wed and gave birth on friday!)and also I had no milk for the following five days.All these made me very anxious and the baby was influenced by all these events.From the first day she started crying all day, with colic pain and she wouldn't sleep at all. After the the 5th day that I was able to feed her propely she would cry less (even with the help of a product with lactose enzymes for colic pains)but she won't sleep more that 3- hours in the morning. At night she wanted to sleep only on my arms. After having the help of my mammy for a week, the baby has settled down, has changed sleep patterns(she sleeps more at night and finally at her cot)but she won't sleep more that 1-2 hours in the morning and only if she has full attention.She falls asleep only in my arms with difficulty even if she is very tired. She likes a lot the sun and she sleeps i her pram when we go out and it is sunny! When she falls asleep and I put her in her pram during the day she will start screaming as soon as she realises that she is on her own. She also suffers from reflux and sometimes she wakes up because she brings up milk and after that she will be very nervous. generally she is a very windy baby.
Any ideas?
Thanks