what is the cause of familia nervosa, which seems to worsen with age in my case. also, am not diabetic but have numbness, tingling, pain, and a little loss of balance on left side. trouble holding head totally upright -- must hold it to the right a bit or I shake even more. Please do not answer if you need money; I honestly don t have enough at this point. Thank you very much :) was told I have retinopathy, which could mean many things. Always have trouble with right eye (occasional pain, dryness, blurring)