My baby is gassy and she passes motion once in 2 days. She is 2.5 months old and not a pre mature baby. Also, she passes out gas which has foul smell. She sleeps only for a short duration, doesn't sleep during day time (sleeps for only around 9 hrs a day) and always wishes to go to sleep with only feeding and breast in her mouth.
Please let me know if there is any cause of concern because of the above reasons.
First you are concerned so there is a concern. Check with your pediatrician to make sure everything is okay physically. (don't allow them to tell you to stop breastfeeding).
Next, while you are breastfeeding do you attend LaLeche League meetings? This are very helpful to learn what to eat and what not to eat that could be making your child very gassy. Sounds like this is probably the problem.
You don't mention lots of screaming and/or crying so I assume it is not colic. Colic is very hard on babies and there are not very many opinions on what causes colic.
I strongly encourage parents to massage their baby on a daily basis and maybe every 8 hours. Get a good baby massage video and learn how to massage her stomach.
Also, a baby this young doesn't need any real food so if you are giving her any, stop and see if just breastfeeding eliminates the gas.
M Kay Keller