I’m so nervous

I have PCOS but it’s never really been painful for me but it’s normal for me to not get a period. The last couple months I have had so much horrible cramping and no period. I’ve also had constant BV and yeast infections. Ive had all STD testing done and now I have to go for a couple ultrasounds on Friday and I’m so scared! I’m 27 and my body has never felt this way before. I’m so scared they’re going to find something life threatening or tell me I won’t be able to have kids. I just have a bad feeling. Just needed to vent about it