I know how you feel. The same thing happened to me, almost 7 years ago. I wish I knew what I could do to help you, but the most I can do from here is offer my support and time if you ever want to discuss anything.
You have a ridiculously amazing talent, and I'm glad we can see more of your work now, and hope you can stay with us. You inspired me to start doing my own art on here, after all.
Whatever happened to you, I'm terribly sorry and I wish you the best of luck in recovering. We all go through some horrible times, some much worse than others, but believe me, if you need to vent about whatever is bothering you, I would be glad to receive your rant through a note.
Don't let the stress build up in the meantime; it could make things even more messy.
I.....I new you were talented but, your not a good artist.........your a GREAT artist. whatever happened to you, I'm very sorry for it. but if you ever want to talk about it, I'm all ears. I hope you feel better, and hope to see more of your fantastic art in the future.