Thanks doc. I have a feeling it is a combination of things. I will try to work on all. For #4, I read an article by mark riptoe that said nipples should point to the floor, which is the opposite of what you said. I have always done chest up but thought maybe I was doing it wrong. Any thoughts as to his philosophy? And for #5, what is the cause if it is #5? How to correct ? Thank you again.