Anyone else get anxious and depressed on their period?

I've been really anxious and depressed before my period starts to the point where I am not eating enough, and my mental health has gone out the window. Keep on having irrational thoughts due to the anxiety, particularly my boyfriend and if he's cheating on me. Or feelings that I am not good enough for him. He is the sweetest guy and he would never do that or think that, but in my depression I think of the worst. When I'm not on my period, I never really think this way and am very confident about our relationship.

Anyone else experience this or should I seek help?