Sorry, - never managed to finish off last night:
'Your baby is comfort sucking'
Possibly, but this is the best way to build supply. Your supply is currently very low due to expressing infrequently and bottle feeding, plus your supply is quite far behind what it should be due to a rocky start.
'You have mastitis'
Terrible. It is best to take painkillers and try to feed through this, massaging the sore parts as you feed.
'You are obliged to express every 4 hours'
Actually, this isn't really often enough. You need to express 10 times in 24 hours including at least twice overnight (once during your sleeping night)
'You are without sleep'
This is hard but you need to change the way you look at things. Your goal is to survive, not get 8 hours consecutive sleep. An idea would be to go to bed at 6-7pm and stay there until morning, getting your dp to bring in baby for feeds only.
'You are miserable'
Perfectly understandable. You absolutely should not be in this position. You have been badly let down by people who should know better. I recommend calling one of the BF helplins that are staffed by 'experts'.
'You have cracked nipples'
This makes feeding extremely uncomfortable but lucky can heal quickly BUT, ONLY if you gave a good latch. There is no way your latch is any good. You need to get this looked at by an 'expert'. None of those people you have turned to are experts.
'Feeding is sore'
Not surprising. You've been let down.
'Feeding is a battle trying to get the fists out of the way'
This is a pain but not a big deal. I should imagine that on top of everything else it is though. You can swaddle, or hook your finger of the hand on the same side as the breast, up the sleeve of the top arm to hold it back, and tuck the bottom arm in your armpit.
'He won't be put down'
This is normal, and especially true when your supply isn't meeting his demand. It is the best thing for your supply to stay close.
'Nipple sheilds might work'
No. Nipple sheilds usually result in an end to breastfeeding and should never be used except under the guidence of a BFC.
If you get some real life proper help, and spend the weekend in bed with your baby, you'll feel like a new woman on Monday.
HTH