anxieties 😩 36 week appt

At my 34 week appt I had an ultrasound which showed my fluid on the low side of normal at 8. Then today at my appt I just got really nervous bc of my levels. I see midwives and they tend to be a little conservative which is good but I'm really feeling like I need another ultrasound just to make sure my levels are still okay. She said I can come in anytime if I notice less baby movement or if I am nervous. And she said she's not too worried at this point but idk. Ive just had a bad feeling this entire pregnancy that something won't go right. So I called her back after my appt and amgoing to see if I can get an ultrasound scheduled. It just makes me wonder what a doctors plan would've been vs a midwife and I'm thinking about getting an opinion from a doctor at the same practice.anybody had anything similar happen?