Does God care about what you eat? YES! Does God care about your minor injury? YES! Think about it the people who love you care about these seemingly little things. They care about your health and well being, and so does your perfect Father. There is no part of us that God does not care about. He knows that we have different aspects of us, and all areas need attention. He knows that we are needy, in fact, He made us this way. He did not want His children to be arrogant and not realize their reliance on others and Himself. In Matthew 6:25-26, He specifically talks about how God will take care of the physical things and we do not need to worry.
"Therefore I tell you, do not worry about your life, what you will eat or drink; or about your body, what you will wear. Is not life more than food, and the body more than clothes? Look at the birds of the air; they do not sow or reap or store away in barns, and yet your heavenly Father feeds them. Are you not much more valuable than they?”
Matthew 6:25-26 NIV
We need to realize that God sees us as valuable and as a whole. He does not see your life broken up into problems that only some concern Him and others are non spiritual aspects. We need to realize how much one area effects everything we do. When we are sick it affects everything! It can be a struggle to even get out of bed, you could not think straight. God knows how important each and every area of your life. He knows more than anyone and does not have this ranking system that most people have, He has a very different perspective. He wants you to see your life, your problems, and your worries how He sees it. He sees a whole person that is important. When you approach your problems as a whole and give them to God, you allow Him to do incredible things. You no longer diminish or dismiss areas of your life that can be hindering you because you view them as less or insignificant. Even things you deem non spiritual He can and wants to work on those areas with You!
He does not want you to struggle alone or giving up. Whatever you are going through whether it is more in the physical realm, or spiritual realm God cares about it and wants to be with you throughout the changing process. All aspects are important to God and He does not want anything such as an addiction, emotional eating, body image issues, or anything to rule over you. God sees you and loves you completely as you are now. Your problems do not hinder His love or power. You need to turn to Him for the strength to overcome the problem together. He truly loves and cares for you!