That is good that you will be following through with your counselor. No matter how strong willed and sucessful we are, anyone of us can get depression.
I was always the the "strongest" in my family, I have 2 older brothers, we are 10 and 8 years apart, I am the baby (47 years old, no more baby) and in 1999 I was Dxed with depression and other stuff, it happens.
I hope you will continue to still view yourself strong willed and keeping it together, I admire your accomplishment(s) I also feel confident that by you exploring this you will get to the core and if things turn out that you should try AD's, give it a go, it may be of help to you.
Are you in the pre-menopausal stage of life, if so I find this can mess up our minds a bit, you know the hormone stuff, it can really contribute to depression, mood swings, amongst other "stuff".
I wish you luck, and remember to drop by here anytime, there is always someone around, you'll find a lot of terrific people here, many have helped me out, they are very supportive.
Please take care now,

DE

In giving advice seek to help, not please your friend
SOLON