Nauseous all the time!

Hey ladies! So I just need some advice. A little background story I’m 22, I am sexually active, only had one partner. I have an IUD and I also got diagnosed with endometriosis about a year ago. I’m not sure if any of this is related.

Recently for maybe a month I have no appetite. I wake up around 9-10AM and won’t be hungry till about 1 or 2. I typically work 3:30-8:30 pm or 4-9 pm. I will eat before work then I will be full my whole shift. Usually when I get home I’ll be a little hungry but nothing crazy. I’m nauseous all the time. My stomach hurts and cramps. I always feel like I’m gonna throw up or pass out. It’s starting to effect my work because I just can’t go through my day without feeling sick. I just kind of assumed it’s endometriosis related but it’s gotten really bad the past week and I am getting worried. I know I should see a DR and I am scheduling an appt as soon as possible just curious if anyone had experience this or has any ideas of the cause. Thank you in advance