I Have Tingling In My Arms, Hands, Legs And Feet.

I have tingling in my arms, hands, legs and feet. Dr has said it is stress, so gave medication for this, but it is continuing to get worse. Have had this going on for about 7 yrs now and it is getting worse and worse. Starting to drop things now. How do I get my Dr to try and find out what is going on with me??