Early 30's is not too soon for peri menopause to start up.
For me it was a VERY long process (like 15 years) of slowly becoming less predictable.
Because you've had other issues (the cyst) and being sick, it might be worth it for your doctor to check you out.
Personally - I love Love LOVE menopause!
Towards the end I went 9 months without a period and was happily counting down to my menopause party - when I had a period! - and had to start my count down all over again.
It's all in how you look at it.
You're free from monthly bloody messes, PMS, moodiness, and water weight gain (I use to go up and down 5 lbs every month no matter what I did due to bloating and holding water).
If you have fibroid s - they tend to shrink after menopause.
Some women are cramp free for the first time since their periods started.
If you live to 100 and achieve menopause in your 50's - then you have a long time to enjoy not having to deal with it!