A short spell on anti depressants a number of years ago virtually cured me for life (touch wood).
I reckoned that if a chemical could make me feel better about my life, then the problem wasn't really my life, but rather my response to it. Or rather, a chemical problem in my brain that was making me respond in a certain way. Now low periods don't disturb me and I don't get sucked into a downward spiral - I just witness them for what they are and let them pass. Just like a bout of tiredness and far less debilitating than a common cold.