Fussy baby, help

Valeska

FTM, 2 week old is really fussy, she squirms and keeps pushing legs up to her belly. Belly also feels a little hard, usually happens after eating. She’s breastfed usually feeds for 10 minutes but now she seems she wants to keep nursing. She’s burped but seems so uncomfortable and spits up. I don’t know if this is colic or reflux are they the same? I don’t know how to comfort her. She won’t sleep well at night because of the fussing.