Hi there and welcome. I guess I got here after all the helpful advise was dished out already. Just to let you know we are here to support, and I would really like to know what the doctor says. It's so much easier having a diagnosis and an explanation and then beginning treatment and no longer just having to sit back and accept that this is how life has to be.
I suffer from very similar cycles to you, with just minor and infrequent hypo-manic phases.