Hello. My Name Is XXXXXXX I Am A 46 Year

Question: Hello.

My name is XXXXXXX I am a 46 year old female with controlled type 2 diabetes, 190lbs, 5'10". I have had Nausea and loss of appetite for a month now. Since I am unable to eat, I throw up mostly bile. Green or dark orange/yellow. I haven't had a bowel movement in over a week due to not being able to eat or if I do try something light and small portion I have been unable to keep much if anything down. I did have my gallbladder removed without issue 19 years ago after my third baby. I take 1.5mg Ozempic once per week for diabetes down from 2mg about 6 weeks ago. I have been on it for about 4 months. I also use Elitriptan, Tylenol 3 or Advil as needed on accession for migraine. I had the flu shot when it came out approximately 1.5-2 weeks ago. I have lost 15 pounds this past 30 days and I am feeling so run down. I have lost a total of about 70 pounds in the past year.
I am unsure if this is at all related but menstrual cycle has changed in the past three months. I have always been very regular since age 14 with a 6 day cycle every 28 days. My past three cycles have been off. Started with it coming after 50 days late and lasted 1 day very light. I have had a tubal ligation and my husband had a vasectomy about 15-20 years ago. Next cycle came after 13 days lasting 4 days quite light then 23 days later I had a very heavy period lasting 8 days.
I have a doctor appointment for Monday with a doctor filling in for my family doc of 24 years. I feel awful and could sure use some guidance as to what I can do to help myself disrupt this committing and feeling of malaise and if I am ok to wait for Monday to see a doctor. I am definitely dehydrated but not severely yet. Please, any advice you can offer would be so appreciated.