This is long and probably disorganized so I apologize in advance.
Background...Baby was full term but small (5.8 lbs., discharged at 4.14lbs) He had low blood sugar and jaundice which resulted in him being taken away frequently and put under phototherapy (which I believe led to our early issues). BF was difficult as first because he was in a cycle of being too tired to nurse so he wouldn't nurse so he was tired etc. We resolved this within a week by giving him small amounts of expressed breast milk in a bottle to wake him up and then giving him the breast. He gained weight like a champ during the first 2 weeks getting up to 5.15lbs.
Now he is almost 7 weeks old and I have been EBF. Over the past 1.5-2 weeks he has started to seemingly pacify at the breast (refuses pacifiers as well). With this pacification he nurses vigorously for a few minutes (I feel the sensation of milk coming down and then he is CHUGGING) and then falls asleep suckling. During his suckling nap I will get the sensation maybe 2-3 more times on both breasts and he will repeat his fast nursing and go back to sleep. In addition, he now usually has one green stool a day and the rest will be the normal seedy yellow.
Also, before he started nursing like this we would have a 3-4 hour stretch at last once in a 24 hr period but now we are feeding every 1.5-2 hours again. He would break the latch once he was done with a breast before too. The change also seems to coincide with us nursing side-lying at night (before that I was too paranoid to sleep in bed and slept with him in a recliner).
I'm worried that something is wrong now and causing the change in eating patterns. Admittedly, I am hyper-paranoid due to our issues early on.
I just don't know what to do/think, any words are appreciated.