my pumpkin is 3 wks old & won't stop crying..i believe she's gassy because she's been burping a…

my pumpkin is 3 wks old & won't stop crying..i believe she's gassy because she's been burping a lot..i burp her after each meal she eats & she's still fussy! she'll drink some of her bottle & start crying ill soothe her & she'll stop then start crying again! this morning she sounded congested bt its gone now after i held her in the bathroom with hot water steaming since i didn't have the nose bulb! this is the second day yesterday she had me & her father up until 1 am !idk what to do..she's calm now but if i sit down with her she'll cry again