I was just found to have brain lesions.can a lesion be a reason why i seem to have uncontrollable anxiety and depression?no meds have helped anxiety

Yes, and no.: All human behavior comes from brain function. All brain functions are due to structure and all structure can be abnormal. Chronic mood disorder can result from constitutional brain biology dysfunction. However, the abnormalities are typically at a cellular level and not visible on current brain scans. Conversely, lesions seen on brain scan typically do not directly result in mood disorders.

Possibly: It could be related, but without a significant history its hard to tell. You may want to seek an evaluation from a specialist such as a neurologist or neuropsychologist.