Worried...

I haven’t been tested for gestational diabetes, yet. I take my glucose test tomorrow. I’m worried because I have pcos. Also my OB told me I already gained 15 pounds since being pregnant and I’m only 24 weeks. My blood pressure was high at my OB appointment today. They had to re check it 3 times. ( I ate a breakfast bar prior to my appointment so maybe that’s why) idk. I’m worried that I definitely have it and I know I’m going to fail. I’ve been eating terrible my pregnancy and I just feel so guilty 😕