Help! I will make this as organized as possible, but please excuse the length - I am deep in the throes of newborn sleep deprivation and probably over thinking this.

DD is 3 weeks old as of yesterday. Due to some latch issues I have been EP since we got home from the hospital, with a great supply and a decent little freezer stash already built up. I feel like she is having a hard time digesting the milk, but does not have all of the symptoms of an actual intolerance.

Reasons I think there is no problem:
- Gaining weight well - born at 8lb10oz and already 9lb1oz at 2 week check up with all 'normal' diaper patterns
- Sleeping decently well for a newborn, generally pretty relaxed, we could put her down awake and let her drift off to sleep on her own initially, that has since changed.

Reasons I think there is a problem:
- We have progressed from what I consider normal grunt/squirm activity prior to pooping to full blown screaming/straining seems to be in pain.
- One poop diaper has a tiny streak of blood in it.I probably would not have seen it if I wasn't looking for it.
- Tummy is bloated/hard and I can hear gas moving around/bubbling/gurgling. She has suddenly woken up from a deep sleep screaming our of nowhere.

What I have done so far:
- Gas drops. They helped, maybe? I don't know.
- After a few hours of screaming and not sleeping in her normal pattern last night, I decided to try a couple days of formula feeding to see if there is any improvement. I have a can of Enfamil Gentlease and as of 11pm last night that's what she has been eating. How long do you think it would take to see enough to know if this is the answer?

She already seems more comfortable, but we had one screaming giant poop episode this morning, which I think is the breast milk from yesterday exiting. Some squirming/grunting but a lot less spit up, and a 4 hour stretch of sleep last night! I think she was tired from the hours of crying

So - the question is what do I do with the 100oz I already have frozen? Is this something she might grow out of and I could try the BM in a month or two? I am still pumping, should I start to wean? How do I know if the gentlease is ok for her - for whatever reason I am having such a hard time distinguishing between 'normal' newborn fussiness and pain/discomfort she is having that I may be able to fix.

I know this is long and all over the place, but feedback is appreciated. I never had to deal with any of this with DS four years ago. Thank you!