I am 64 year old and a diabetic with heart problems, thyroid, and cholesterol I am on Metformin 1000 mg ,glyburide 5mg , metoprol 25mg, levothyroxin 25mg and atorvastatin 40mg and want to know if I could take fish oil and spirulina or something that s going to help my brain I feel that i am losing my memory . What could advise me