Wow, Mama- you've been working SO HARD and we all admire what you've achieved.
It sounds like you are doing all the right things. Just a few things you might want to consider:
- The pump. What make/model do you have? It may be time for a more powerful pump, or to get the motor checked on the one you have. Some moms even have good luck with manual pumps- so maybe switch things up and see if you get better results.
- Drugs. There are 2 anti-nausea drugs that are commonly prescribed to nursing moms because they have the side-effect of increasing milk supply. Reglan is used in the US, and Domperidone is used in Canada and the EU. The problem with Reglan is that it can increase your risk of depression, so it's not really PPD-compatible. The problem with Domperidone is that it isn't FDA-approved and is not legally available in the US.
- Frequency. It sounds like you are pumping a lot- but are you pumping for long time periods, or more frequently for shorter time periods? If you're doing it one way, try the other- you may have good results. When I had supply problems, I pumped every 2 hours during the day and every 3 at night, and had good results.
- Power pumping. Pump for 10 minutes, rest for 10, pump for 10, rest for 10, and finally pump for 10 for a total of 30 minutes of pumping in an one-hour period. Power pumping is supposed to mimic the way a baby feeds and boosts mom's supply during a growth spurt.
If you try all this, and you're still not seeing an increase in supply... Well, then IMHO you have done about all you can reasonably do, and you should relax, pat yourself on the back, and just try to keep that 800 ml/day going, because every ml of breastmilk is good. It doesn't need to make up the totality of your baby's diet to be worthwhile.
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"