I get dizzy all the time and it gets worse everyday an mri scan showed i had a cyst in my brain would that affect it but i have had this dizzy for yrs?

Depends: If the cyst is in an area of your brain responsible for balance (vestibular system) it could cause dizziness. However there are many causes if dizziness or vertigo- most of them are caused by inner ear problems.

Need more info: I need more about the cyst seen in MRI especially its size, location and whether it is blocking the flow of CSF ( brain fluid). Sometimes a large cyst near 3rd ventricle which blocks the normal flow of CSF can increase cranial pressure and cause dizziness. You should seen by a neurologist for complete evaluation and rule out the other possibilities of dizziness.

Dizzy & brain cyst: You need to sit down with your doctor and your parents to review the findings and what they mean. I am not sure what you mean by a cyst on the brain and its location or etiology. Any speculations you get here will only serve to add to your confusion and anxiety.