Yes, absolutely. I never really had PMS until after my second child was born, I was 31. Then I have suffered 7 horrible years of it with incredible regularity and predictability. Spots, break outs, bloating, incredible bad temper and crabbiness, lots of shouting. I was diagnosed as having PMDD and antidepressants helped, but my preferred treatment is hormonal contraception, the Nuvaring, which gives me just 3 days each month of feeling like s**t, and so my life is way better than before.
Just some thing about a woman's body in her thirties.
Try the hormonal birth control perhaps, and see if it works for you to reduce symptoms and the severity of them? I think you are perfectly normal, if it makes you feeel any better! And your gyne, male, typical, is wrong to blow it off as just stress. It's real and will probably continue. Try and enjoy the "ups" of your sex drive: maybe a perk?
Clare