I think this phrase here is the key.

Try to answer yourself a couple of questions:

- Why do you want to put pressure on yourself? Do you feel like you don't deserve to relax and be happy with what you've got?
- Do you feel like you HAVE to count calories and restrict in every meal? Are you able to eat without thinking about cals, fat etc?
- How do you feel about your weight loss? Happy, in control of your life, successful maybe?
- Are you satisfied with the number of the scale now? Do you want to lose more? Do you set your next goal weight lower every time you reach your previous goal weight?

I cannot provide a diagnosis for you, but it sounds like you cannot relax around food.
If you are concerned about your well-being, maybe you should talk to a professional. He will tell you what's going on.

Best wishes