I have this same problem. I actually have a lot of good ideas I want to write about but I can't keep up with it. I would love to write a bipolar blog but I can't. Also, I wanted to be a novelist. There was a time in life when I could write 8 hours a day 7 days a week. I wrote one whole book which turned out to be 150,000 words (which is way too long for what it is...)

Anyway, I want to work on my writing and try to get published, but it is a huge struggle now. I also have trouble reading any more. I used to read those big giant fantansy novels like Lord of the Rings type stuff. I struggle now, even though I love the subject matter. Takes me forever to get through a book. The last book I read it took me 8 months. I read the same book when I was 13 in about a week.

I also have twitter but I never talk because I don't have many followers or people to follow, and I get embarrassed that I'll say something weird.