I took .5mg of Arimidex for about a week, and I noticed some strange things happening to me. For one thing, It was a bitch to get it up, and when it got hard it didn't stay that way very long. I did manage to do my thing once or twice under these conditions, and it was very different. I would begin to do my thing with no warning, without the sensation that normally accompanies this, and then as I kept going I would do it again shortly therafter like normal. That is probably too much information for some of you, but I thought I would see if anyone else had similar experiences with this drug. After I stopped arimidex, everything returned back to normal. Thank God. :-)