Primary issue: laying in my hammock causes my left (closest to center of hammock) scapula to hurt.

Info: I'm a big (6'4" 250# give or take) hammock noob and I'm laying South American style in an ENO doublenest. I suspect my trees are a bit close to each other for the hammock (stock suspension) and my slap strap pros.

The problem seems worse when using a pad but it exists regardless.

Any tips, hints, pointers or humorous anecdotes?