 [ Symptoms ] please help with my issues of weight loss memory loss and body pain [ Disease ] vitamin d3 levels should be between 20 to 50 ngml a level of 34 ngml vitamin d is normal and is ruling out vitamin d deficiency if the weight loss is of short duration it may be due to thyroiditis or some acute infection if the weight loss is of longer duration it may be due to no appetite malabsorption or some chronic disease like tuberculosis and diabetes i advise you to consult your physician you may need to have blood and urine tests for confirmation along with thyroid profile blood sugar and chest x ray regarding memory loss there can be a variety of causes for memory problems like dementia other amnestic syndromes depression anxiety and brain lesions it is important that you have a proper assessment to determine the cause vitamin b12 and omega 3 fatty acid supplements may be helpful try to avoid stress for further information consult an internal medicine physician online   > <link>