baby cries while breastfeeding

i think my milk supply is decreasing, which is scary because my baby does not like bottles....lately she has started pulling at my nipple and eventually she’ll start crying...is this a sign of low milk supply?? when she does that, i squeeze my breast and milk does come out, so im not sure if shes not getting enough from that breast or what it is....what i do is i switch her over to the other breast and she feeds normally...any suggestions??? ive been having issue with the breast in question with a milk bleb (just recovering from it)...i feed her every two to three hours....i used to have oversupply (i would wake up with engorged breasts every day)...but not anymore

i just dont want my milk to dry up because she is not a fan of bottles or formula 😞