My mom is 58 years old. A couple of months back she had experienced reduction in sense level with her feet. Sometimes the feet used to get completely numb, especially when she was about to go to sleep. Right now, she seems to be fine, but I wanted to know what could be causing that. She's definitely not diabetic, I got her checked. Since last week, she has been experiencing sudden dizziness when she just woke up from sleep. Or when she sits for long time and gets up suddenly. Are there any chances that both these problems could be related? any recommendations?