Brain feeling dried out after reading

Sometimes, when I force myself to read something i should (for work for example), it seems like my brain starts to feel dried out after a while...I manage to understand what I read, intellectually I'm getting into it, but it's like i'm violating my own mind. When I stop, this feeling goes on for a while....as if I could not find any creative thought because of straining my brain and forcing it to go in a direction it didn't want to....usually I'm no fun for a while, then, when I'm again among friends or family, it's like my brain softens up and I'm the old me again, I have fresh ideas and I'm creative again. I'm forced to read quite a lot of things I'm not drawn to for my work. But this happens to me also when I read things I think should interest me, but it's maybe only that I've convinced myself that this is so, but my subconscious says no. But when I read things I'm genuinely interested in, this problem doesn't occur. Anyway, most people I know who read intellectually challenging stuff that doesn't interested them are bored, bu do not feel boring or dull as I do once I've finished....it's like my brain doesn't function as it normally does for some time afterwards. This keeps me off reading stuff that I think would be quite useful for me...anyone can relate to this ?

via Social Anxiety Forum http://www.socialanxietysupport.com/forum/f35/brain-feeling-dried-out-after-reading-413137/