I Was Told About 5 Years Ago I Had PCOS.

I was told about 5 years ago I had PCOS.
After being on bc pills ultrasounds came back my ovaries look normal.
Now after being off bc pills for almost 12 months my periods are very irregular and super painful and very heavy clotting and only last 3 days, my hormones feel all over the place and I am now noticing hairs under my chin and on my breasts.
And breaking out with pimples. I never usually get these things.
Should I see a gp and go back on bc pills.
Is it possible for PCOS to come and go??
I am almost 30 and normal weight.