Do you ever not listen to your care provider?

Im 25 weeks today, So the past 3 days until yesterday ive had bright green bowel movements, yesterday AM i noticed a small amount of blood in my BM, and then a few minutes later when showering I felt so sick, ive finally went 9 days or so without any morning sickness, I threw up so much bile and noticed a little bit of pink blood. I had eaten some cereal after, and 40 minutes or so I went to the store to do some shopping, super tiny store so not alot of walking, I started feeling my body get extremely hot, when at the cash, i started dripping sweat, my vision went blurry, my heart pumping fast and I could hardly breathe, and felt like I was going to fall. I had to leave the store, my friend suggested we get lunch so I picked a chicken sandwich and fries and a sugary pop incase it was my sugar, even afterwards I felt horrible. Spoke to the emergency midwife, who said it was just dehydration, and as for the blood probably an internal hemeroid (but i havent had any issues or pain going) and probably a tare in my throat from throwing up? I relaxed all day, and then slept 15 hours last night and just woke up and I still feel absolutely horrible, shakey, light headed, my ears feel funny and when I bent over slight to flush the toilet i almost fell!!! Does this sound more then dehydration? Would you rule out any chance of going to see a doctor today because of what your midwife said it probably is???

Thank you💖💖