Maybe you're toy alien looks like an actual alien because they want you to become comfortable with it. So when you encounter a real alien the experience is made easier for you because you feel...
Everybody has the same flaws you mentioned. The reason you notice is because only you look at your body in such detail, others don't.(and if they do there is something wrong with them) Just keep...
Take some time off. Reconsider your form. See a doctor or physio.
From personal experience I'm guessing it's something to do with your sciatica. Google it