How to know if you have pcos?

Jessica

I've been struggling a lot since I came off of the pill in February. I've always had a lot of unwanted thick dark hair on my chin and down to my neck. Also a lot of stomach hair. I started tracking my cycles with bbt and while not crazy off they differ 8-10 days each month. Ive gained 13 lbs in the last 10 months regardless of exercise. I've also struggled with acne since my teenage years and I'm now 23. Do you think I should go see my gyno about this?