Is anyone else's baby having green poo?

My one month old baby occasionally has yellow with some forest green poo in it. It's becoming more often. My husband read online that she isn't getting enough hind milk, but I always finish the first breast before offering the next one.

Then in the evening she eats so much back to back. Usually for 4-6 hours straight but last night I think it was 8 hours.

Could this be caused by me not eating enough? Sometimes I eat one meal a day because I'm too tired and would rather sleep. I haven't even been able to bathe her for a while because of how exhausted I am when she eats for so long. I didn't get a nap yesterday so I cried when she still wanted food at 1 am. Usually she gives me 6 hours after clusterfeeds but today she only gave me 4. I don't know how to fix this if it's broken. I need to know this gets better because I can't live like this 😭