It seems standing up my erections are fine, but when I lay down I have them but they aren't as firm and seem to curve more than when I am standing. I used to be able to maneuver my penis while erect not like bend it but could angle it a bit to one side or the other. Like for instance if a girl wanted to go on top I could angle it so it went in. Idk if I can do that but it seems like it doesn't want to move anywhere? Is this common?