I go through spurts. If I'm going through a writing slump, then I go through books like they're candy. I think I read like 3 ebooks in one day at one time? I know I've read over 60 books since April (April/May was a really rough time for me.)
On the other hand, if I'm deep in the writing trenches, am inspired, and actually going places, I hardly read at all. Reading is a huge distraction for me, but it can also help if I get stuck in a rut. It's just getting back into the writing after so long reading that's the tricky part, haha. So, no, I don't really read while I'm writing, cause it distracts me, unless I really need the distraction to keep going.