If the thought even crosses your mind go!! Its never a waste of time for them to see you! You deserve to be happy. Will you be happy %100 of the time no but any improvement in the quality of life is absolutely worth it. Counseling is an amazing tool. It doesnt matter if you have "serious" issues or if they are just the run of rhe mill vent or advice. Having someone that is separated from your life can give great insight into what you may be going through. Give tools to get out of your own head and to help break cycles of depression PCOS induced or not. ( this is strictly my experience, dont know what you are going through yourself) You dont need to have anything in mind at all to talk about. Sometimes just what you did that day can help a lot. I highly recommend it. Its a beautiful thing totally free of judgements. Your never committed to go. You can always leave if your too uncomfortable or feel your just not ready. I put it off for a long time because i was afraid to be diagnosed with the same severe mental illness that my birth mother had. I spent years in fear and suffering. They arent just going to sit you down and tell you your crazy put you on a bunch if medication or send you to a facility. ( my fears) idk if this gives you some comfort but there is still a stigma around mental health and its unfortunate because so many people could be suffering a little less in their lives and they and you absolutely deserve it!

Well, you could run it by you general practitioner to see if that professional would think it'd be helpful, but I believe that the consensus is that if you tunnel vision like thoughts like you describe or other kind of thoughts bothering you to the point that it interferes with your daily life, it's beneficial to consult, so Id definitely recommend it!
What helped me to finally get help when I needed it badly was ro realize that counselors aren't here because were broken/have issues. They're here because life is hard sometimes, and to help us navigate the many bumps on the road.
I had (still have sometimes) the same problematic racing thoughts you described, and I'd recommend looking into cognitive behavioral therapy. I didn't think I was depressed, OCD nor suffering from crippling anxiety, but my counselor told me that "sometimes being angry is a way of being sad," and I realized I just had a different form of depression or anxiety disorder: one that manifests itself in us being ungrateful b*****s You dont even want to sympathize with us, but we need the compassion and attentive ear! I hope you heal soon!

Ask to treat your hormones seperately starting with progesterone. It is an alternative to using birth control as a way to balance hormones, just most doctors know about it. Our hormones are directly related to our sanity! I have lost my mind only to go to the doctor to find out one of my hormones is off. Plus if all you can do is go for a walk, try a weighted vest! It tricks the body into believeing it weighs more than it does and in turn you burn more calories.

I say definitely go to one especially one that understands all your issues you wanna talk about. It helps if they have have a good knowledge of biology too

It could be very helpful to see one if you can. I know my friend saw one, I saw one but only for one day, due to dropping out if university they could not help me because I dropped out. I might try and find another. I understand what you mean though i have mood swings and similar to the things you brougt up. ❤️ take care of yourself!