Longest ever was nine months. And it was very deep the whole time.

Been having them since I was 13 years old and I am 50 now. The normal pattern the last twenty years is three or four times a year that last a month and pretty severe for that month. Recent years has been worse and longer lasting and I don't know why.

This last year it has varied a lot where I get weeks I am doing great, then weeks where I have moderate, then weeks like right now where it is severe. I dunno if this last year is because of the meds I am on because that is highly unusual for me to bounce around so much. Mainly the med has worked great since last april. Lately it is losing the battle. When it is moderate I can fight it back and sometimes win.