Baby being a butt lol

Okay so my daughter will be 5 weeks tomorrow. The doctors think she’s got reflux, but we won’t know until our follow up on Tuesday. So she’s been an absolute dream the past few days, and it’s like today the devil came out of her! She has not slept but maybe 5 hours. I’ve logged it and it says 9 hours but most of that was during the night time/morning and she’s been up allll freaking day. She’s BF, but hasn’t eaten for longer than 11 minutes. I’ll switch breasts after trying a few times on one, but really she’s eating for 2-4 minutes. I’ve given her two 2 oz bottles of formula and she’s chugged them down, but thrown up immediately after. Like, THREW. UP. Not projectile but enough that its like, what the fuck lol. Idk what to do. She hasn’t really pooped today either. More wet diapers than poop. They say hungry babies won’t starve themselves but should I be worried? & for the no sleeping thing.... SOMEBODY. PLS. HELP. Lmfao is anyone else going through this or has gone through it and can you give me advice? I haven’t been this exhausted since coming home from the hospital. 😩 (yes I have the wonder weeks app, I’ve tried gerber soothe drops, tried the windi baby, I’ve tried just about everything. But any advice is welcome. I’m dying here)