Every parent has to go through this phase. Its learning... all over again!
We used to give "Woodward's Gripe Water" to my daughter then, to avoid such gastric issues.
This Woodward's Gripe Water is only for babies from 1 - 12 months. 1 - 6 months old babies must have a 5 ml spoonful. 6 - 12 months old babies must be given two 5 ml spoonfuls. The best time to use Gripe Water is during or after a meal.