It sounds like things are getting better. Definitely reduce the length of blocks or even stop block feeding if that feels right-you want to go by how you feel, more than anything else. Nursing one side at a time is how many babies nurse, that is just normal. Nursing both sides is normal to-it just depends on variables such as production, breast storage capacity, baby's preference, and it usually changes over time.
that is good! Unpredictable feeding patterns are normal. As long as baby is getting enough milk overall, you have no worries.Things seem to be getting better rather than worse,
Yes, in fact one side usually produces more milk than the other.By the way, can one breast produce more?