My 86 year old dad is newly diagnosed with mixed dementia: Alzheimer's and vascular. For about 2 years prior to diagnosis he complained of (amoungst other things!) a feeling of sweating especially in his lower legs, although no sweat being produced. To help with this he vigorously rubs his legs on a regular basis. It is distressing for him. He has had every blood test going and seen several different specialists who have drawn a blank. We have come to the conclusion it must be due to the changes in the brain, but are wondering if anyone else has suffered with this symptom?