Crying at night

Ma

My baby will be a week old tomorrow. Last night she started crying uncontrollably and we thought it was gas. We gave her gas meds and that didn’t work. She is being breastfed and on a good schedule with feeding. She was showing no signs of being hungry. The only thing that worked was letting her sleep on my chest. I just fed her an hour ago and planned to put her down to sleep but the screaming has already started. I just can’t tell if something is actually wrong or if she just wants to be held. Please help!