I am currently feeding Charlotte using S26 Gold and Avent bottles - she was bottle fed from birth. Have had problems with wind etc so have been using gripe water for this. Still having problems with feeding and she is not sleeping much at night. Have noticed the last few days she is not drinking as much and didn't sleep much at all yesterday during the day or night. I am at my wits end with what to do. I am unsure whether to change the bottles, the formula or everything. Has anyone else had these same problems? Is this normal? Charlotte is 1 month old today.