Gosh, this is a lot to deal with at 19! I'm glad you are getting support from your mom and working with a doctor. When do you see the hematologist? So, let's start with endometriosis. You don't really give your symptoms. What are they? Do you see an ob/gyn? Here's information on endometriosis. https://www.mayoclinic.org/diseases-conditions/endometriosis/symptoms-causes/syc-20354656 You probably have good insight into that since you know the symptoms and mention family having it. To be diagnosed, you need to have a pelvic exam and then they might do an ultrasound or mri or maybe even a look see laparoscopy. They treat in a variety of ways, often with medication for someone so young as yourself. Pain medication and hormone therapy are often used. Sometimes they do surgery to help. If or when you want to have a baby, then they work on fertility issues surrounding endo. Some women down the road may opt for a hysterectomy but later on. Tell me your symptoms and we'll talk more about enco.
Now, factorv111. That's probably a little scary that you have this issue and am glad you are going to learn more about that. They'll do more blood work to confirm that you are high. Could this cause heavy menstrual bleeding and cramps? Absolutely. That is one of the symptoms of it. Yes, you could have both that and endometriosis. But you may just have that too. You'll need to have the full work up to know. Here is information on what 'could' be going on with high factor v111.
diabetes mellitus
pregnancy
advanced age
an inflammatory condition
obesity
liver disease
https://www.healthline.com/health/factor-viii-assay#after-the-test
What I would ask your doctor about is von Willebrand disease. https://www.haemophilia.org.au/publications/national-haemophilia/2014/no-187-september-2014/von-willebrand-disorder-vwd-special-issues-for And this is often treatable, so please let us know what the doctor says!