Gyno visit

I'm twenty one, never been to the gynocologist because I'm not sexually active, but I've been having problems and didn't have a period for like six months. I took the pills the doctor gave me, got my period, hopefully I'll get it again in five days (thanks, <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a>) but I know I need to see the gyno now. 
Problem is, I'm feeling really self conscious. I've always been a big girl but I was pretty fit, but over the last year or so I've gained a lot of weight and I have stretch marks down my thighs, and now I've started developing bumps like purple bumps that aren't pimples or ingrown hairs which I read are hormones or because my thighs rub. 
Has anyone else felt this way? I feel so judged when I see the doctors lately and it makes me not want to go.