No photo when linking to Facebook, Pinterest & Comment problems too

I am using a child theme of twenty-eleven, with seven plugins: Askimet, Breadcrumb NavXT, Easy Recipe, Google XML Sitemaps, Jetpack, Online Backup, Shareaholic.

There are three problems.

1) When I click “share” for Facebook, or if I cut and paste the URL and post to Facebook, the link is posted, with no photo. I’m posting crafts now, the link without a photo is virtually useless.

2) When I post an image to Pinterest from the Shareaholic link, it is not linking back to my blog, there is an error message.

3) I’d like comments to show up at the bottom of every post, but people have to click on the speech bubble at the top of the post, and not everyone knows to do this. I’ve seen other WP blogs where comments and the comment box show up at the bottom of each post.

Not sure if these are a theme problems, plugin problems or something else. Any ideas? I’ve tried disabling Shareaholic, maybe Jetpack is interfering, I’ve never had any of it work for me.

My latest blog post:
https://www.healthagainstthegrain.com/lavender-love/

Thank you. Theresa