I had this same problem. After 6 weeks of agony (he developed a shallow latch to cope) I figured out that lying back in a recliner worked to help with the flow, then the LC I had an appointment with after I'd pretty much got it sorted told me I was doing this:
http://biologicalnurturing.com/I found latching while lying back quite hard, so I latched sitting up in the chair with my legs ready to push back and the second he was on, back we went. It meant that he could cope with the flow (and the second letdown which seemed to be worse for him that the first as he expected the first one when he latched but to be drinking happily and then have the flow increase instantly was a bit much for him) and also that I could sit up in the evenings when my supply was lower.
I did express and bottle feed for a few days at a time several times during the first 4 months. It is hard work, especially if you're at home by yourself. I called it 'detouring' rather than expressing because you have to feed, then pump, then wash up & sterilise rather than just feeding. It did work wonders for DS re: foremilk/hindmilk balance and wind and I actually credit the fact that I did bottle feed EBM with the fact I'm still BFing him now at 8 months.
DS actually did prefer the bottle at one point because it had a slower flow than me - I just gave him a faster teat on the bottle and suddenly I was slower than the bottle and he liked me better again
![Tongue :P](https://smiley.babywhispererforums.com/Smileys/classic/tongue.gif)