you are not sick, for sure...
but perhaps too stress until you are depress..
i faced the same issue as you too.. like keep wanting to give baby the best (breast milk) but yet not able to satisfy him.
and felt so tired bcoz each session could last so long (more than 30 mins), yet he is not full and after a short while, he wants to have milk again.
i know alot of mummies will ask you to perserve bf as this is the best way to encourage milk flow...
but for me, bcoz if i keep on this way, i'll feel more stress and tired and eventually these factors will also affect the flow.
therefore, i end up expressing the milk out to feed him.
at least happy for baby and happy for mummy.
jia you k !