I'm 44 this month.
For about 3+ years my cycle has changed from being clockwork 28 days to all over the place - sometimes 19/20 days, other months over 40 days between periods.
Last year I had a large ovarian cyst removed which had been there a while, and it was thought that maybe it had been causing issues. I had it removed a year and a half ago and things are still erratic, so I don't think it can be blamed on the cyst.
Symptoms I've had or are currently experiencing are: hot flushes, night sweats, restless legs, palpitations, extreme loss of libido (!), constipation, fatigue (feel exhausted in the mornings), peeing more at night, headaches, foggy head, dry eyes, eczema (that I haven't had since pregnancy) very flat mood, insane sugar cravings.. and a few more!
However, I do not have these symptoms constantly. I have stretches of time with no symptoms. At the moment I'm having a few of these and feeling rotten - but I don't know if I should get some help yet - or wait until it all gets worse and more consistent.