 [ Symptoms ] what problems would an overdose of otc potassium cause [ Disease ] most helpful answer well as the patient you are always entitled to additional opinions about test results so getting a second opinion in this case is a judgment call on your part a second doctor probably could simply look at the ct films so you could get another opinion without having to be re examined your insurance may not pay for this however that said i tend to trust my doctor if your doctor said not to worry about this then personally i would probably let it go white matter lesions can sound scary and indeed they can be indicative of various scary diseases such as multiple sclerosis or dementia but those diseases do not exist in a vacuum if you had multiple sclerosis for example you would have physical symptoms studies do show that white matter brain lesions may be a normal condition of aging i am not sure the subject has been studied enough to say positively but certainly brain scans of older people with no symptoms of disease have shown white matter lesions doc says do not worry so my advice is do not worry  hope this helps set your mind at ease i am 58 yrs old and i was diagnosed with ms 2 yrs ago i have lesions in the white matter both periventricular and subcortial dr order lumbar puch and found in my spinal fluid coating from nerve dymilation they said i have ms