Hey mom I definitely feel this is because of colic. My younger one went through the same problem.
I'd suggest u start massaging her belly button area in slow circular motions with a mix of heeng and water. It will help to release gas. Also, keep helping her burp. While feeding, place her head in a slightly elevated position. All in all, hold her and soothe her and love her a lot. She will find it difficult to handle the pain and discomfort so keep making her comfortable. Ask the doc about any safe medication u can give
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Dada of 1 lovely daughter