Why is my stomach hard almost all the time almost kinda bloated to ? obesity?

Possibly: Seeing as to how you've had a number of tests, including a mri, the complaint of a bloated abdomen is likely not to be serious, given your age and presumed lack of findings on mri. If you are overweight, this can certainly account for a "bloated" abdomen. You should sit down with your physician to discuss the findings of the tests you have had done already before doing others.