My 80 year old mother, who is suffering with dimentia, has developed blisters on the inside and outside of her feet. In the past week she has been behaving strangely, listless, unable to walk the stairs, decrease in appetite and she has seems to have difficulty holding up her head. Are these symtoms related at all? My sister is on her way to the hospital with our mother now, but I am curious about her condition. Outside of the dimentia, she is in very good health.