I visited your site. Perhaps there are some coding problems for your template -- as same spacing width occurred almost every post. Could it be you've added additional gadgets by inserting extra codes to the original template?
Unless someone can identify the problem immediately by viewing your blog. I'm sorry for my lacking in coding expertise, for me I need to see your template's HTML codes in order to check on the problem. DM me anytime if you plan to send the codes for check up.
Or we can always wait for others' solutions first. 