please help me. i’ve posted this on two facebook pages and got zero responses. i’m about to give up completely

is there any reason i would just randomly stop responding to my pump? i have the zomee Z2 and my baby just turned 4 months.

my supply dipped a lot to where i only produce about an ounce a day. but recently every time i pump i get nothing. even if i power pump. but hand expressing still works. i get a few good sprays and about 5 ml each time i hand express. absolutely nothing when i pump. only a little bit on the flanges. but i can only hand express for so long before my hands start cramping and i know im not getting it all out.

my parts have been replaced and ive changed my flange sizes from 24, 21, 19, and 17. (19-21 is what i normally use) and nothing has worked. it’s making me want to just give up ☹️. i also have pumping pal flanges but i could never get them to work right.

(i also have a medela pump in style from a friend, parts and flanged changed and it still doesn’t work, there will be milk on the yellow diaphragms but not even a drop in the bottles)